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Abstract
BACKGROUND The aim of this study was to evaluate the performance of diffusion tensor imaging (DTI) parameters for the distinction between pediatric medulloblastomas and pilocytic astrocytomas. METHODS DTI was performed in 36 patients, who were divided into two groups: group 1 consisted of 26 patients with medulloblastoma, whereas group 2 consisted of 10 patients with pilocytic astrocytoma. The Mann-Whitney U Test was utilized to compare the tumoral fractional anisotropy (tFA) and diffusivity (tMD) values and the tumor to parenchyma ratios for these values (rFA and rMD, respectively) between these two groups. Receiver operating characteristic (ROC) curve analysis and the Youden Index were applied to compute the cut-off point, and then the area under the curve (AUC), sensitivity, and specificity were calculated. RESULTS The tFA and rFA values of group 1 were significantly higher than those of group 2 (P<0.05). In contrast, the tMD and rMD values of group 1 were significantly lower than those of group 2 (P<0.05). Among the FA parameters, a cut-off tFA value of 0.37 provided the best ability to discriminate between medulloblastomas and pilocytic astrocytomas, producing a sensitivity value of 84.6%, a specificity of 80%, and an AUC of 81.7%. The cut-off values for MD and rMD were determined to be 1.06 × 10-3 mm2/s and 1.33, respectively, and were determined to be the most efficacious parameters for the differential diagnosis between medulloblastoma and pilocytic astrocytoma, which generated sensitivity, specificity, and AUC values of 100%. CONCLUSIONS DTI parameters can play pivotal roles in the discrimination between medulloblastoma and pilocytic astrocytoma.
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Affiliation(s)
- Nguyen Minh Duc
- Department of Radiology, Hanoi Medical University, Ha Noi, Vietnam -
- Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam -
- Department of Radiology, Children's Hospital 02, Ho Chi Minh City, Vietnam -
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2
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Ho C, Crawford JR. Postoperative epidural enhancement in a child with metastatic medulloblastoma. BMJ Case Rep 2024; 17:e260468. [PMID: 38538097 PMCID: PMC10982746 DOI: 10.1136/bcr-2024-260468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Affiliation(s)
- Clarice Ho
- School of Medicine, University of Nevada Reno School of Medicine, Reno, Nevada, USA
| | - John Ross Crawford
- Pediatrics, University of California Irvine, Irvine, California, USA
- Pediatrics, Children's Hospital Orange County, Orange, USA
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3
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Hou G, Cheng X, Chi Y, Wang X, Zheng R. Al18F-NOTA-Octreotide PET/CT and 18F-FDG PET/CT for Detecting Cerebellar Hemangioblastoma in a Patient With Von Hippel-Lindau Disease. Clin Nucl Med 2024; 49:289-291. [PMID: 38306383 DOI: 10.1097/rlu.0000000000005042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
ABSTRACT Von Hippel-Lindau disease is a hereditary syndrome associated with various benign and malignant tumors, including hemangioblastomas. A 42-year-old man with a history of Von Hippel-Lindau disease underwent surgery for pancreatic neuroendocrine tumor and renal clear cell carcinoma and was recommended to undergo Al18F-NOTA-octreotide and 18F-FDG PETCT examination to assess potential metastases. 18F-FDG PET/CT showed low uptake in the right cerebellum, which demonstrated increased Al18F-NOTA-octreotide activity. Cerebellar mass resection surgery was performed. Pathological result was consistent with hemangioblastoma. This case report indicates the significant role of Al18F-NOTA-octreotide in the diagnosis of hemangioblastoma.
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Affiliation(s)
| | - Xin Cheng
- From the Department of Nuclear Medicine (PET-CT Center), National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yihebali Chi
- State Key Laboratory of Molecular Oncology and Department of Medical Oncology, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Falco J, Broggi M, Rubiu E, Schiariti M, Restelli F, Mazzapicchi E, La Corte E, Ferroli P, Acerbi F. The Application of Sodium Fluorescein in Resection of Medulloblastoma Under YELLOW 560 Filter: Feasibility and Preliminary Results of a Monocentric Cohort and Systematic Review. World Neurosurg 2024; 183:e386-e394. [PMID: 38154682 DOI: 10.1016/j.wneu.2023.12.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Maximizing surgical resection of medulloblastoma (MB) affects overall survival; nevertheless, surgical resection remains a because of the infiltrative behavior of this tumor. Several dyes have been tested for improving tumor visualization; however, few reports with different protocols of fluorophores use are available and the results are inconsistent. Hence, we report our experience with sodium fluorescein in MB surgery, aiming to assess the role of this technique on the extent of resection. Furthermore, we performed a literature review of this topic. METHODS Fluorescence characteristics, extent of resection, and clinical outcome were analyzed in 9 consecutively operated patients with MB. A comprehensive literature search and review for English-language articles concerning fluorescein application in MB was conducted. RESULTS In our cohort, no side effect related to fluorescein occurred; all tumors presented with an intense or moderate yellow-green enhancement, and fluorescein was judged fundamental in distinguishing tumors from viable tissue in 7 of 9 cases. Gross total resection or near-total resection (i.e., a residual tumor volume <1.5 cm3) was achieved in 8 patients. The review explored the different techniques and surgical interpretations as well as surgical radicality; we did not find a homogenous protocol for fluorescein injection in the published articles. Fluorescence appeared moderate or intense in almost all cases, with a high percentage of usefulness and consensual achievement of a high rate of gross total resection. CONCLUSIONS Based on these results, we can infer that fluorescein-guided surgical resection is a safe and valuable method for patients with MB.
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Affiliation(s)
- Jacopo Falco
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Morgan Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy.
| | - Emanuele Rubiu
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Marco Schiariti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Francesco Restelli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Elio Mazzapicchi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Emanuele La Corte
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy; Department of Neurosurgery, Experimental Microsurgical Laboratory, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
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Del Baldo G, Cecinati V, Colafati GS, Carai A, Mastronuzzi A. Response to: Trigeminal nerve chronic motor denervation caused by cerebellar peduncle pilocytic astrocytoma. Childs Nerv Syst 2024; 40:611-612. [PMID: 38133685 PMCID: PMC10891178 DOI: 10.1007/s00381-023-06230-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Affiliation(s)
- Giada Del Baldo
- Department of Pediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Valerio Cecinati
- Complex Structure of Pediatrics and Pediatric Oncohematology, "Nadia Toffa", Central Hospital Santissima Annunziata, Taranto, Italy
| | - Giovanna Stefania Colafati
- Department of Diagnostic Imaging Oncological Neuroradiology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Andrea Carai
- Neurosurgery Unit, Department of Neurosciences, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Angela Mastronuzzi
- Department of Pediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
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Xue J, Mo C. A case report of cerebellar hemangioblastoma simulated brain metastasis shown by magnetic resonance imaging. Medicine (Baltimore) 2024; 103:e37162. [PMID: 38335432 PMCID: PMC10860963 DOI: 10.1097/md.0000000000037162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/15/2024] [Indexed: 02/12/2024] Open
Abstract
RATIONALE Hemangioblastomas occur both sporadically and as an important component of von Hippel-Lindau (VHL) disease. The typical MRI features of hemangioblastoma are cysts with enhanced cystic wall nodules in the cerebellum or lesions with uniform enhancement on the surface or inside the spinal cord. If there is edema around hemangioblastoma, it is easy to be misdiagnosed as brain metastasis on MRI. PATIENT CONCERNS A 41-year-old male patient was found to have a lump in the pancreas during a health examination 3 months ago. Subsequently, the patient underwent surgical treatment. The postoperative pathology suggests that the pancreatic lesion is a neuroendocrine tumor. The patient subsequently came to our hospital for consultation on further treatment plans. Abnormal signals were found in the right cerebellum during pituitary magnetic resonance imaging (MRI) before the development of a treatment plan for neuroendocrine tumors. Subsequently, the patient underwent cerebellar mass resection surgery. The pathological result after the surgery was hemangioblastoma. DIAGNOSIS The patient underwent surgery to remove the tumor and was diagnosed with hemangioblastoma by pathological examination. Subsequently, the patient's genetic testing results confirmed the diagnosis of VHL syndrome. INTERVENTIONS The patient underwent cerebellar mass resection surgery. OUTCOMES The patient recovered after surgical resection. LESSONS In this report, we emphasize the atypical MRI manifestations of hemangioblastoma. For patients with VHL syndrome-related hemangioblastoma, genetic testing is necessary for the patient and their family members.
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Affiliation(s)
- Jiaxing Xue
- Department of Neurosurgery, People’s Hospital of Dingzhou, Dingzhou, China
| | - Chenlong Mo
- Department of Neurosurgery, People’s Hospital of Dingzhou, Dingzhou, China
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Bush S, Klimo P, Onar-Thomas A, Huang J, Boop FA, Gajjar A, Robinson GW, Khan RB. Application of the Rotterdam postoperative cerebellar mutism syndrome prediction model in patients undergoing surgery for medulloblastoma in a single institution. J Neurosurg Pediatr 2024; 33:174-178. [PMID: 38000061 PMCID: PMC10810679 DOI: 10.3171/2023.9.peds23160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 09/25/2023] [Indexed: 11/26/2023]
Abstract
OBJECTIVE Postoperative cerebellar mutism syndrome (CMS) develops in up to 40% of children with medulloblastoma. The Rotterdam model (RM) has been reported to predict a 66% risk of CMS in patients with a score of ≥ 100. The aim of this study was to retrospectively apply the RM to an independent cohort of patients with newly diagnosed medulloblastoma and study the applicability of the RM in predicting postoperative CMS. METHODS Participants had to have their first tumor resection at the authors' institution and be enrolled in the SJMB12 protocol (NCT01878617). All participants underwent structured serial neurological evaluations before and then periodically after completing radiation therapy. Imaging was reviewed by the study neurologist who was blinded to CMS status when reviewing the scans and retrospectively applied RM score to each participant. RESULTS Forty participants were included (14 females and 26 males). Four (10%) patients had CMS. The median age at tumor resection was 11.7 years (range 3.5-17.8 years). Tumor location was midline in 30 (75%), right lateral in 6 (15%), and left lateral in 4 (10%). The median Evans index was 0.3 (range 0.2-0.4), and 34 (85%) patients had an Evans index ≥ 0.3. Five participants required a ventricular shunt. The median tumor volume was 51.97 cm3 (range 20.13-180.58 cm3). Gross-total resection was achieved in 35 (87.5%) patients, near-total resection in 4 (10%), and subtotal in 1. The median RM score was 90 (range 25-145). Eighteen participants had an RM score of ≥ 100, and of these 16.7% (n = 3) had CMS. Of the 22 patients with an RM score < 100, 1 child developed CMS (4.5%, CI 0.1%-22.8%); 3 of the 18 patients with an RM score ≥ 100 developed CMS (16.7%, CI 3.6%-41.4%). The observed rate of CMS in the cohort of children with an RM score ≥ 100 was significantly lower than the observed rate in the original RM cohort (66.7%, CI 51%-80.0%, p < 0.001). A greater risk of CMS in patients with an RM score ≥ 100 could not be confirmed (p = 0.31). CONCLUSIONS At the authors' institution, the incidence of CMS in patients who had an RM ≥ 100 was significantly lower than the RM cohort. These findings raise questions regarding generalizability of RM; however, fewer cases of CMS and a relatively small cohort limit this conclusion.
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Affiliation(s)
- Savannah Bush
- University of Tennessee, School of Medicine, Memphis
| | - Paul Klimo
- Department of Neurosurgery, University of Tennessee, Memphis
| | | | | | | | | | | | - Raja B. Khan
- Division of Neurology, St. Jude Children’s Research Hospital, Memphis, Tennessee
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Valetopoulou A, Aquilina K, Rennie A, Ganesan V, James G, Silva AHD. Rupture of a flow aneurysm secondary to spontaneous extracranial to intracranial revascularisation in the posterior fossa following radiation-induced vasculopathy for cerebellar tumour. Childs Nerv Syst 2024; 40:239-243. [PMID: 37594564 DOI: 10.1007/s00381-023-06126-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 08/09/2023] [Indexed: 08/19/2023]
Abstract
Paediatric patients receiving cranial irradiation therapy for brain tumours are at increased risk of cerebrovascular complications. Radiation-induced moyamoya syndrome (MMS) is a well-recognised complication of this. We present a case of an 8-year-old boy with a history of medulloblastoma, who underwent surgical excision followed by post-operative adjuvant oncological treatment. Six years later, he developed cerebellar/intraventricular haemorrhage. He underwent an emergency external ventricular drain (EVD) insertion followed by posterior fossa suboccipital craniotomy. On dural opening, an abnormal vessel was visualised on the surface of the right cerebellar hemisphere, which was not disturbed. No obvious abnormalities were identified intra-operatively. Cerebral catheter angiography confirmed the presence of a right-sided occipital artery (OA) to posterior inferior cerebellar artery (PICA) extracranial to intracranial (EC-IC) bypass with a zone of the distal PICA territory supplied by this EC-IC bypass. A presumed flow aneurysm originated from the bypass in the distal PICA, identified as cause for the haemorrhage. We highlight a rare cause for intracranial haemorrhage in this cohort of patients. Children who have undergone radiotherapy may have exquisitely sensitive cerebral vasculature and need careful vigilance and evaluation for vasculopathic complications following spontaneous haemorrhage.
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Affiliation(s)
- A Valetopoulou
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.
| | - K Aquilina
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - A Rennie
- Department of Interventional Neuroradiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - V Ganesan
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - G James
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - A H D Silva
- Department of Neurosurgery, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
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Minh Duc N. The effectiveness of diffusion kurtosis imaging metrics for distinguishing between brainstem glioma and cerebellar medulloblastoma. Clin Ter 2024; 175:20-25. [PMID: 38358473 DOI: 10.7417/ct.2024.5029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Background In some clinical situations, distinguishing between cerebellar medulloblastoma and brainstem glioma is important. We assessed whether diffusion kurtosis imaging (DKI) metrics could be used to distinguish cerebellar medulloblastomas from brainstem gliomas in children. Patients and methods This prospective study was approved by the institutional review board. Seventy patients were separated into two groups according to eventual diagnosis: brainstem glioma (n = 30) and cerebellar medulloblastoma (n = 40). Both groups underwent brain magnetic resonance imaging (MRI), including DKI. The Kurtosis value for the tumor region and the ratio between Kurtosis values between the tumor and the normal parenchyma (rKurtosis) were compared between groups using the Mann-Whitney U test. Receiver operating characteristic curve analysis and the Youden's Index were applied to identify a cutoff value for distinguishing between the two tumor types, and the area under the curve (AUC), sensitivity, and specificity for the selected cutoff value were calculated. Results Compared with brainstem gliomas, cerebellar medulloblastomas had significantly higher Kurtosis and rKurtosis values (p < 0.05). Medulloblastoma could be differentiated from brainstem gliomas using a Kurtosis value of 0.91 or an rKurtosis value of 0.90, both of which achieved 100% sensitivity, 96.7% specificity, and AUC values of 0.990. Conclusions DKI measurements can contribute to distinguishing between cerebellar medulloblastoma and brainstem glioma in children.
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Affiliation(s)
- N Minh Duc
- Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
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Pons-Escoda A, Garcia-Ruiz A, Garcia-Hidalgo C, Gil-Solsona R, Naval-Baudin P, Martin-Noguerol T, Fernandez-Coello A, Flores-Casaperalta S, Fernandez-Viñas M, Gago-Ferrero P, Oleaga L, Perez-Lopez R, Majos C. MR dynamic-susceptibility-contrast perfusion metrics in the presurgical discrimination of adult solitary intra-axial cerebellar tumors. Eur Radiol 2023; 33:9120-9129. [PMID: 37439938 DOI: 10.1007/s00330-023-09892-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/16/2023] [Accepted: 05/30/2023] [Indexed: 07/14/2023]
Abstract
OBJECTIVES Adult solitary intra-axial cerebellar tumors are uncommon. Their presurgical differentiation based on neuroimaging is crucial, since management differs substantially. Comprehensive full assessment of MR dynamic-susceptibility-contrast perfusion-weighted imaging (DSC-PWI) may reveal key differences between entities. This study aims to provide new insights on perfusion patterns of these tumors and to explore the potential of DSC-PWI in their presurgical discrimination. METHODS Adult patients with a solitary cerebellar tumor on presurgical MR and confirmed histological diagnosis of metastasis, medulloblastoma, hemangioblastoma, or pilocytic astrocytoma were retrospectively retrieved (2008-2023). Volumetric segmentation of tumors and normal-appearing white matter (for normalization) was semi-automatically performed on CE-T1WI and coregistered with DSC-PWI. Mean normalized values per patient tumor-mask of relative cerebral blood volume (rCBV), percentage of signal recovery (PSR), peak height (PH), and normalized time-intensity curves (nTIC) were extracted. Statistical comparisons were done. Then, the dataset was split into training (75%) and test (25%) cohorts and a classifier was created considering nTIC, rCBV, PSR, and PH in the model. RESULTS Sixty-eight patients (31 metastases, 13 medulloblastomas, 13 hemangioblastomas, and 11 pilocytic astrocytomas) were included. Relevant differences between tumor types' nTICs were demonstrated. Hemangioblastoma showed the highest rCBV and PH, pilocytic astrocytoma the highest PSR. All parameters showed significant differences on the Kruskal-Wallis tests (p < 0.001). The classifier yielded an accuracy of 98% (47/48) in the training and 85% (17/20) in the test sets. CONCLUSIONS Intra-axial cerebellar tumors in adults have singular and significantly different DSC-PWI signatures. The combination of perfusion metrics through data-analysis rendered excellent accuracies in discriminating these entities. CLINICAL RELEVANCE STATEMENT In this study, the authors constructed a classifier for the non-invasive imaging presurgical diagnosis of adult intra-axial cerebellar tumors. The resultant tool can be a support for decision-making in the clinical practice and enables optimal personalized patient management. KEY POINTS • Adult intra-axial cerebellar tumors exhibit specific, singular, and statistically significant different MR dynamic-susceptibility-contrast perfusion-weighted imaging (DSC-PWI) signatures. • Data-analysis, applied to MR DSC-PWI, could provide added value in the presurgical diagnosis of solitary cerebellar metastasis, medulloblastoma, hemangioblastoma, and pilocytic astrocytoma. • A classifier based on DSC-PWI metrics yields excellent accuracy rates and could be used as a support tool for radiologic diagnosis with clinician-friendly displays.
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Affiliation(s)
- Albert Pons-Escoda
- Radiology Department, Hospital Universitari de Bellvitge, Feixa Llarga SN, 08907, L'Hospitalet de Llobregat, Barcelona, Spain.
- Neuro-Oncology Unit, Institut d'Investigació Biomedica de Bellvitge, IDIBELL, Barcelona, Spain.
| | | | | | - Ruben Gil-Solsona
- Institut de Diagnostic Ambiental i Estudis de l'Aigua (IDAEA) - CSIC, Barcelona, Spain
| | - Pablo Naval-Baudin
- Radiology Department, Hospital Universitari de Bellvitge, Feixa Llarga SN, 08907, L'Hospitalet de Llobregat, Barcelona, Spain
| | | | - Alejandro Fernandez-Coello
- Neuro-Oncology Unit, Institut d'Investigació Biomedica de Bellvitge, IDIBELL, Barcelona, Spain
- Neurosurgery Department, Hospital Universitari de Bellvitge, Barcelona, Spain
- Biomedical Research Networking Centers of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Susanie Flores-Casaperalta
- Radiology Department, Hospital Universitari de Bellvitge, Feixa Llarga SN, 08907, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Montserrat Fernandez-Viñas
- Radiology Department, Hospital Universitari de Bellvitge, Feixa Llarga SN, 08907, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Pablo Gago-Ferrero
- Institut de Diagnostic Ambiental i Estudis de l'Aigua (IDAEA) - CSIC, Barcelona, Spain
| | - Laura Oleaga
- Radiology Department, Hospital Clinic de Barcelona, Barcelona, Spain
| | | | - Carles Majos
- Radiology Department, Hospital Universitari de Bellvitge, Feixa Llarga SN, 08907, L'Hospitalet de Llobregat, Barcelona, Spain
- Neuro-Oncology Unit, Institut d'Investigació Biomedica de Bellvitge, IDIBELL, Barcelona, Spain
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Zhang Y, Janssen MLF, Gommer ED, Zhang Q, van de Berg R. Typewriter tinnitus with time-locked vestibular paroxysmia in a patient with cerebellopontine angle meningioma. J Neurol 2023; 270:5645-5648. [PMID: 37477833 PMCID: PMC10576677 DOI: 10.1007/s00415-023-11869-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Affiliation(s)
- Yuzhong Zhang
- Department of Otorhinolaryngology and Head & Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
- Department of Otorhinolaryngology, Head and Neck Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- Department of Otorhinolaryngology, Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Marcus L F Janssen
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
- School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Erik D Gommer
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
- School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Qing Zhang
- Department of Otorhinolaryngology, Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Raymond van de Berg
- Department of Otorhinolaryngology and Head & Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands.
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Kakodkar P, Houlihan LM, Preul M, Bermingham N, Lim C. Primary and metastatic paraganglioma of the cranial vault. Br J Neurosurg 2023; 37:967-975. [PMID: 33739182 DOI: 10.1080/02688697.2021.1902477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
AIM Primary paragangliomas (PGs) are extra-adrenal neuroendocrine tumours that are extremely rare. Multiple lesions in the central nervous system raise suspicion of a metastatic process. Lack of consensus on their management warrants the categorization of existing literature to evaluate management options. METHODS A systematic review of the medical literature on paraganglioma within the cranial vault was completed in accordance with PRISMA guidelines using the Medline database. Tumour physical measures, management parameters, and immunohistochemistry of all documented cases of primary and secondary paraganglioma within the cranial vault were descriptively compared. This review was augmented by comparison with our centre's case of a 48-year-old man diagnosed with metastatic PG originating in the cauda equina and seeding in the cerebellum. Histological parameters within the literature was also established. RESULTS The systematic literature review yielded published 52 papers. Most prevalent primary intracranial PGs (n = 37) were in the sellar region (78%, n = 23) and the cerebellum (21%, n = 6). The highest progression free survival was seen in primary sellar PGs (87.5% by 34.5 months) and cerebellar PGs (100% by 35.7 months) when treated with adjuvant radiotherapy with subtotal resection or gross total resection, respectively. Contrasting, the most frequent intracranial PGs metastases (n = 15) occurred in the cerebellum (36%, n = 6), and the cerebral parenchyma (29%, n = 4). Their recurrence rate was between 4 and 10% and these metastasized PG in the cerebellum are slow growing (8.9 years, range: 3-22 years). Adjuvant radiotherapy with Gross Total Resection resulted in the optimum progression-free survival (100% up to 48 months) for the patient with PGs metastasis to the cerebellum. CONCLUSION Metastatic PGs tend to be slow-growing and are clinically silent tumours. Diagnosed patients should undergo regular surveillance neuroradiological assessment, regardless of symptomatology, for metastases along the complete neural axis. We recommend operative management with GTR and adjunct RT in these patients.
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Affiliation(s)
- Pramath Kakodkar
- School of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Lena Mary Houlihan
- Department of Neurosurgery, Cork University Hospital, Cork, Ireland
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Mark Preul
- The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Niamh Bermingham
- Department of Neuropathology, Cork University Hospital, Cork, Ireland
| | - Chris Lim
- Department of Neurosurgery, Cork University Hospital, Cork, Ireland
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13
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Inoue M, Oya S, Yamaga T, Tajima T, Hanakita S. Pearls & Oy-sters: Cognitive and Affective Dysfunction Caused by a Small Cerebellar Hemangioblastoma. Neurology 2023; 101:e1272-e1275. [PMID: 37407260 PMCID: PMC10516281 DOI: 10.1212/wnl.0000000000207509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/24/2023] [Indexed: 07/07/2023] Open
Abstract
The primary function of the cerebellum is the coordination and regulation of movement; therefore, cerebellar tumors usually present with ataxia, dysarthria, and vertigo. Large tumors also cause elevated intracranial pressure that may lead to a disturbance of consciousness. Furthermore, it has become increasingly evident that the cerebellum plays a substantial role in cognitive and affective processing. A 44-year-old female patient presented with a 1-month history of depression and flat affect. She had no cerebellar symptoms including no coordination dysfunction or dysarthria. Cognitive function tests revealed impairments in attention, execution, and processing speed. Hamilton Depression Scale and Hospital Anxiety Depression Scale indicated moderate-to-severe depression. Magnetic resonance (MR) imaging revealed a 7-mm enhancing lesion in the culmen of the cerebellar vermis with surrounding edema. Technetium-99m ethyl cysteinate dimer single-photon emission tomography (SPECT) showed hypoperfusion in the left frontal lobe. Although she was initially treated with corticosteroids for presumed sero-negative autoimmune encephalitis, her symptoms persisted. She then underwent cerebellar lesion resection. The histologic diagnosis was hemangioblastoma. The patient's symptoms dramatically improved within 1 week of resection, including improved batteries for cognitive function and depression. Complete regression of cerebellar edema and left frontal lobe hypoperfusion was observed on MR and SPECT images, respectively. This case reiterates the crucial influence of the cerebellum on cognitive and affective function. Moreover, cognitive dysfunction may be masked in cases with focal cerebellar symptoms or elevated intracranial pressure and, consequently, not adequately evaluated.
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Affiliation(s)
- Mizuho Inoue
- From the Department of Neurosurgery (M.I., S.O., S.H.), and Department of Neurology (T.Y., T.T.), Saitama Medical Center, Kawagoe, Japan
| | - Soichi Oya
- From the Department of Neurosurgery (M.I., S.O., S.H.), and Department of Neurology (T.Y., T.T.), Saitama Medical Center, Kawagoe, Japan.
| | - Tetsuo Yamaga
- From the Department of Neurosurgery (M.I., S.O., S.H.), and Department of Neurology (T.Y., T.T.), Saitama Medical Center, Kawagoe, Japan
| | - Takashi Tajima
- From the Department of Neurosurgery (M.I., S.O., S.H.), and Department of Neurology (T.Y., T.T.), Saitama Medical Center, Kawagoe, Japan
| | - Shunya Hanakita
- From the Department of Neurosurgery (M.I., S.O., S.H.), and Department of Neurology (T.Y., T.T.), Saitama Medical Center, Kawagoe, Japan
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14
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Talmasov D, Schmahmann JD. Cognition, Emotion, and Cerebrocerebellar Circuit Disruption in a Patient With Hemangioblastoma. Neurology 2023; 101:507-508. [PMID: 37407267 DOI: 10.1212/wnl.0000000000207626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 05/23/2023] [Indexed: 07/07/2023] Open
Affiliation(s)
- Daniel Talmasov
- From the Departments of Neurology and Psychiatry (D.T.), Columbia University Medical Center, New York; and Department of Neurology (J.D.S.), Massachusetts General Hospital, Boston.
| | - Jeremy Dan Schmahmann
- From the Departments of Neurology and Psychiatry (D.T.), Columbia University Medical Center, New York; and Department of Neurology (J.D.S.), Massachusetts General Hospital, Boston
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15
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Alanazi R, Alkhaibary A, Alfaqawwy W, AlSufiani F, Ahmad N, Aljared T. Concurrent medulloblastoma and cardiac fibroma: a rare presentation of Gorlin-Goltz syndrome. Childs Nerv Syst 2023; 39:2499-2504. [PMID: 37160435 DOI: 10.1007/s00381-023-05970-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/19/2023] [Indexed: 05/11/2023]
Abstract
BACKGROUND Gorlin-Goltz syndrome is a rare autosomal dominant disorder resulting from PTCH1 gene mutation and presents with variable clinical manifestations. The co-occurrence of medulloblastoma and cardiac fibroma in Gorlin-Goltz syndrome is extremely rare. The present article discusses a patient diagnosed with Gorlin-Goltz syndrome and concurrent medulloblastoma and cardiac fibroma. CASE PRESENTATION A 19-month-old boy transferred to our hospital after a radiological finding of posterior fossa lesion and hydrocephalus. A pericardial mass was noted after persistent arrhythmias. Both tumors were excised for definitive management. The histopathological sections were diagnostic of desmoplastic nodular medulloblastoma, WHO grade 4 and cardiac fibroma. Molecular and genetic investigations confirmed a pathogenic variant of PTCH1 gene, suggestive of autosomal dominant Gorlin-Goltz syndrome. CONCLUSION Co-occurrence of medulloblastoma and cardiac fibroma is extremely rare and poses a management dilemma. Genetic counseling and antenatal screening are of utmost importance to early detect and manage patients with Gorlin-Goltz syndrome.
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Affiliation(s)
- Rahaf Alanazi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Ar Rimayah, 14611, Riyadh, SA, 11426, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Ali Alkhaibary
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Ar Rimayah, 14611, Riyadh, SA, 11426, Saudi Arabia.
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.
- Division of Neurosurgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia.
| | - Wael Alfaqawwy
- Division of Pediatric Neurosurgery, Department of Pediatric Surgery, King Abdulaziz Medical City, King Abdullah Specialist Children's Hospital, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Fahd AlSufiani
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Naveed Ahmad
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Division of Pediatric Hematology/Oncology, Department of Oncology, King Abdulaziz Medical City, King Abdullah Specialist Children's Hospital, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Tariq Aljared
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Ar Rimayah, 14611, Riyadh, SA, 11426, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Division of Pediatric Neurosurgery, Department of Pediatric Surgery, King Abdulaziz Medical City, King Abdullah Specialist Children's Hospital, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
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16
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Yeh P, Li TY, Cheng PW. Bruns Nystagmus in Cerebellopontine Angle Hemangioblastoma. World Neurosurg 2023; 176:140-141. [PMID: 37169073 DOI: 10.1016/j.wneu.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/13/2023]
Abstract
Bruns nystagmus is a form of jerk nystagmus that has a localizing value in cerebellopontine angle (CPA) tumors. Hemangioblastomas involving the CPA is rare. A case of a 57-year-old male presented with Bruns nystagmus which led to the discovery of a large CPA hemangioblastoma is described. The nystagmus was compatible with the laterality of the tumor. High quality video of Bruns nystagmus was recorded.
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Affiliation(s)
- Peng Yeh
- Department of Otolaryngology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Tzu-Yu Li
- Department of Otolaryngology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Po-Wen Cheng
- Department of Otolaryngology, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
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17
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Karabacak M, Ozkara BB, Ozturk A, Kaya B, Cirak Z, Orak E, Ozcan Z. Radiomics-based machine learning models for prediction of medulloblastoma subgroups: a systematic review and meta-analysis of the diagnostic test performance. Acta Radiol 2023; 64:1994-2003. [PMID: 36510435 DOI: 10.1177/02841851221143496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Medulloblastomas are a major cause of cancer-related mortality in the pediatric population. Four molecular groups have been identified, and these molecular groups drive risk stratification, prognostic modeling, and the development of novel treatment modalities. It has been demonstrated that radiomics-based machine learning (ML) models are effective at predicting the diagnosis, molecular class, and grades of CNS tumors. PURPOSE To assess radiomics-based ML models' diagnostic performance in predicting medulloblastoma subgroups and the methodological quality of the studies. MATERIAL AND METHODS A comprehensive literature search was performed on PubMed; the last search was conducted on 1 May 2022. Studies that predicted all four medulloblastoma subgroups in patients with histopathologically confirmed medulloblastoma and reporting area under the curve (AUC) values were included in the study. The quality assessments were conducted according to the Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) and Checklist for Artificial Intelligence in Medical Imaging (CLAIM). A meta-analysis of radiomics-based ML studies' diagnostic performance for the preoperative evaluation of medulloblastoma subgrouping was performed. RESULTS Five studies were included in this meta-analysis. Regarding patient selection, two studies indicated an unclear risk of bias according to the QUADAS-2. The five studies had an average CLAIM score and compliance score of 23.2 and 0.57, respectively. The meta-analysis showed pooled AUCs of 0.88, 0.82, 0.83, and 0.88 for WNT, SHH, group 3, and group 4 for classification, respectively. CONCLUSION Radiomics-based ML studies have good classification performance in predicting medulloblastoma subgroups, with AUCs >0.80 in every subgroup. To be applied to clinical practice, they need methodological quality improvement and stability.
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Affiliation(s)
- Mert Karabacak
- Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Fatih, Istanbul, Turkey
| | - Burak Berksu Ozkara
- Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Fatih, Istanbul, Turkey
| | - Admir Ozturk
- Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Fatih, Istanbul, Turkey
| | - Busra Kaya
- Faculty of Medicine, Istanbul Altinbas University, Bakirkoy, Istanbul, Turkey
| | - Zeynep Cirak
- Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Fatih, Istanbul, Turkey
| | - Ece Orak
- Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Fatih, Istanbul, Turkey
| | - Zeynep Ozcan
- Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Fatih, Istanbul, Turkey
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18
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Brandel MG, Goodwill VS, Park A, Snyder V, Schwartz MS. Sudden unexpected death from hydrocephalus due to cerebellopontine angle meningioma. J Neuropathol Exp Neurol 2023; 82:370-372. [PMID: 36864709 DOI: 10.1093/jnen/nlad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Affiliation(s)
- Michael G Brandel
- Department of Neurosurgery, University of California, San Diego, California, USA
| | - Vanessa S Goodwill
- Department of Pathology, University of California, San Diego, California, USA
| | - Anna Park
- County of San Diego Medical Examiner's Department, San Diego, California, USA
| | - Vivian Snyder
- County of San Diego Medical Examiner's Department, San Diego, California, USA
| | - Marc S Schwartz
- Department of Neurosurgery, University of California, San Diego, California, USA
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19
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Moradi B, Hamidian Y, Soltanghoraee H, Katouli FS. Prenatally detected congenital medulloblastoma. J Clin Ultrasound 2023; 51:432-435. [PMID: 35930477 DOI: 10.1002/jcu.23278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/11/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
We describe a congenital cerebellar mass in a fetus at 30 weeks GA. The lesion is detected at the prenatal third-trimester ultrasound, confirmed by fetal MRI, and determined as medulloblastoma in postmortem pathologic evaluation.
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Affiliation(s)
- Behnaz Moradi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- Department of Radiology, Yas Complex Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaser Hamidian
- Fetal Health Research Center, Hope generation Foundation, Tehran, Iran
| | - Haleh Soltanghoraee
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Fatemeh Shakki Katouli
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- Department of Radiology, Arash Women Hospital, Tehran University of Medical Sciences, Tehran, Iran
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20
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Abbou W, Guerrouj I, Aichouni N, Nasri S, Kamaoui I, Skiker I. [Sporadic cerebellar hemangioblastoma]. Rev Prat 2023; 73:174-175. [PMID: 36916259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Widad Abbou
- Service de radiologie, CHU Mohammed-VI, université Mohammed-Ier, Oujda, Maroc
| | - Imane Guerrouj
- Service de radiologie, CHU Mohammed-VI, université Mohammed-Ier, Oujda, Maroc
| | - Narjisse Aichouni
- Service de radiologie, CHU Mohammed-VI, université Mohammed-Ier, Oujda, Maroc
| | - Siham Nasri
- Service de radiologie, CHU Mohammed-VI, université Mohammed-Ier, Oujda, Maroc
| | - Imane Kamaoui
- Service de radiologie, CHU Mohammed-VI, université Mohammed-Ier, Oujda, Maroc
| | - Imane Skiker
- Service de radiologie, CHU Mohammed-VI, université Mohammed-Ier, Oujda, Maroc
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21
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McLaughlin A, Lakshmanan R, Dyke J, Warne R, Saha S, Lind C, Bynevelt M. Diffuse paediatric cerebellar glioma: two identical imaging phenotypes of an extremely rare entity with disparate pathology. Childs Nerv Syst 2023; 39:857-861. [PMID: 36658366 DOI: 10.1007/s00381-023-05836-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 01/06/2023] [Indexed: 01/21/2023]
Abstract
Although the posterior fossa is a common location for paediatric brain tumours [1], diffuse glioma isolated to the cerebellum is an extremely rare imaging entity. Only two cases of isolated diffuse paediatric cerebellar glioma have been reported in the English language to the best of our knowledge [2, 3], and only one of these cases had a similar imaging phenotype to our cases [3]. Although somewhat similar to Lhermitte-Duclos (dysplastic gangliocytoma of the cerebellum), the appearances are distinct from other neoplastic entities of the paediatric posterior fossa. Clinical presentation and neurological examination findings are vital however to help differentiate other diffuse pathologies involving the cerebellum such as rhombencephalitis. Presented here are two diffuse cerebellar gliomas in children under the age of 3 with near identical imaging phenotypes demonstrating differing histological and molecular genetic profiles.
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Affiliation(s)
- Aden McLaughlin
- Department of Medical Imaging, Perth Children's Hospital, Nedlands, Perth, WA, 6009, Australia.
| | - Rahul Lakshmanan
- Department of Medical Imaging, Perth Children's Hospital, Nedlands, Perth, WA, 6009, Australia
| | - Jason Dyke
- PathWest Neuropathology, Royal Perth Hospital, Perth, WA, 6000, Australia
- School of Medicine and Pharmacology, University of Western Australia, Crawley, WA, 6009, Australia
| | - Richard Warne
- Department of Medical Imaging, Perth Children's Hospital, Nedlands, Perth, WA, 6009, Australia
| | - Snigdha Saha
- Perth Children's Hospital Department of Neurosurgery, Nedlands, Perth, WA, 6009, Australia
| | - Christopher Lind
- Perth Children's Hospital Department of Neurosurgery, Nedlands, Perth, WA, 6009, Australia
| | - Michael Bynevelt
- Department of Medical Imaging, Perth Children's Hospital, Nedlands, Perth, WA, 6009, Australia
- Neurological Intervention and Imaging Service of Western Australia (NIISwa), Nedlands, Perth, WA, 6009, Australia
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22
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Yang W, Li Y, Ying Z, Cai Y, Peng X, Sun H, Chen J, Zhu K, Hu G, Peng Y, Ge M. A presurgical voxel-wise predictive model for cerebellar mutism syndrome in children with posterior fossa tumors. Neuroimage Clin 2023; 37:103291. [PMID: 36527996 PMCID: PMC9791171 DOI: 10.1016/j.nicl.2022.103291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/04/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND This study aimed to investigate cerebellar mutism syndrome (CMS)-related voxels and build a voxel-wise predictive model for CMS. METHODS From July 2013 to January 2022, 188 pediatric patients diagnosed with posterior fossa tumor were included in this study, including 38 from a prospective cohort recruited between 2020 and January 2022, and the remaining from a retrospective cohort recruited in July 2013-Aug 2020. The retrospective cohort was divided into the training and validation sets; the prospective cohort served as a prospective validation set. Voxel-based lesion symptoms were assessed to identify voxels related to CMS, and a predictive model was constructed and tested in the validation and prospective validation sets. RESULTS No significant differences were detected among these three data sets in CMS rate, gender, age, tumor size, tumor consistency, presence of hydrocephalus and paraventricular edema. Voxels related to CMS were mainly located in bilateral superior and inferior cerebellar peduncles and the superior part of the cerebellum. The areas under the curves for the model in the training, validation and prospective validation sets were 0.889, 0.784 and 0.791, respectively. CONCLUSIONS Superior and inferior cerebellar peduncles and the superior part of the cerebellum were related to CMS, especially the right side, and voxel-based lesion-symptom analysis could provide valuable predictive information before surgery.
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Affiliation(s)
- Wei Yang
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yiming Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Zesheng Ying
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yingjie Cai
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiaojiao Peng
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - HaiLang Sun
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Jiashu Chen
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Kaiyi Zhu
- Department of Cardiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China; Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 030032, China
| | - Geli Hu
- Department of Clinical and Technical Support, Philips Healthcare, Beijing 100600, China
| | - Yun Peng
- Department of Image Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
| | - Ming Ge
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
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23
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Dev ID, Rangarajan V, Puranik AD, Agrawal A, Shah S, Sahay A, Purandare NC. Sporadic Cerebellar Hemangioblastoma With Strong SSTR Expression on 68 Ga-DOTANOC PET/CT. Clin Nucl Med 2023; 48:e28-e30. [PMID: 36240749 DOI: 10.1097/rlu.0000000000004456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Sporadic cerebellar hemangioblastomas are rare with majority of these tumors presenting as a part of von Hippel-Lindau syndrome. We demonstrate an unusual case of a symptomatic sporadic cerebellar hemangioblastoma mimicking a meningioma on MRI and 68 Ga-DOTANOC PET imaging.
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Affiliation(s)
- Indraja D Dev
- From the Departments of Nuclear Medicine and Molecular Imaging
| | | | - Ameya D Puranik
- From the Departments of Nuclear Medicine and Molecular Imaging
| | - Archi Agrawal
- From the Departments of Nuclear Medicine and Molecular Imaging
| | - Sneha Shah
- From the Departments of Nuclear Medicine and Molecular Imaging
| | - Ayushi Sahay
- Pathology, Tata Memorial Center, Homi Bhabha National Institute, Mumbai, India
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24
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Yang W, Zhang H, Cai Y, Peng X, Sun H, Chen J, Ying Z, Zhu K, Peng Y, Ge M. Postoperative MRI features of cerebellar mutism syndrome: a retrospective cohort study. J Neurosurg Pediatr 2022; 30:567-577. [PMID: 36208442 DOI: 10.3171/2022.8.peds22294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/29/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE In this study, the authors aimed to investigate the relationship between postoperative MRI features and cerebellar mutism syndrome. METHODS A retrospective cohort of patients who underwent tumor resection from July 2013 to March 2021 for midline posterior fossa tumors was investigated. All patients were followed up at least once. Clinical data were extracted from medical records and follow-up databases. Two neuroradiologists independently reviewed preoperative and postoperative MRI. Univariable and multivariable analyses were performed to compare the postoperative cerebellar mutism syndrome (pCMS) and non-pCMS groups. Correlation analysis was performed using the Spearman correlation coefficient analysis. RESULTS Of 124 patients, 47 (37.9%) developed pCMS. The median follow-up duration was 45.73 (Q1: 33.4, Q3: 64.0) months. The median duration of mutism was 45 days. The median tumor size was 48.8 (Q1: 42.1, Q3: 56.8) mm. In the univariable analysis, abnormal T2-weighted signal of the left dentate nucleus (DN) (74.5% in the pCMS group vs 36.4% in the non-pCMS group, p < 0.001), right DN (83.0% vs 40.3%, p < 0.001), left superior cerebellar peduncle (SCP) (74.5% vs 27.3%, p < 0.001), right SCP (63.8% vs 23.4%, p < 0.001), left middle cerebellar peduncle (MCP) (51.1% vs 26.0%, p = 0.008), and right MCP (61.7% vs 26.0%, p < 0.001); male sex (83.0% vs 45.5%, p < 0.001); vermis 3 impairment (49.4% vs 19.1%, p = 0.002); solid tumor (91.5% vs 72.7%, p = 0.022); and hydrocephalus (72.3% vs 45.5%, p = 0.006) were more frequent in the pCMS group than in the non-pCMS group. Multivariable logistic analysis showed that male sex (adjusted OR 4.08, p = 0.010) and the cerebro-cerebellar circuit score of T2-weighted images (adjusted OR 2.15, p < 0.001) were independent risk factors for pCMS. The cerebro-cerebellar circuit score positively correlated with the duration of mutism. In Cox regression analysis, the cerebro-cerebellar integrated circuit injury score of T2 (adjusted HR 0.790, 95% CI 0.637-0.980; p = 0.032) and injury of vermis 3 (adjusted HR 3.005, 95% CI 1.197-7.547; p = 0.019) were independently associated with the duration of mutism. CONCLUSIONS Male sex and cerebro-cerebellar circuit damage are independent risk factors for pCMS. The cerebro-cerebellar circuit score indicates the duration of mutism.
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Affiliation(s)
- Wei Yang
- 1Departments of Neurosurgery and
| | - Hong Zhang
- 2Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing
| | | | | | | | | | | | - Kaiyi Zhu
- 3Department of Cardiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan; and
- 4Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yun Peng
- 2Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing
| | - Ming Ge
- 1Departments of Neurosurgery and
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25
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Adachi S, Yamashita K, Nakamizo A, Amano T, Momosaki S, Noguchi T. Unusual imaging characteristics of cystic meningioma in cerebellopontine angle. Neuroradiol J 2022; 35:777-779. [PMID: 35503008 PMCID: PMC9626835 DOI: 10.1177/19714009221096831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We report a case of cystic meningioma at the left cerebellopontine angle (CPA). Magnetic resonance imaging demonstrated both solid and cystic components in the tumor. The cystic component appeared slightly hyperintense compared to cerebrospinal fluid on fluid-attenuated inversion recovery (FLAIR) imaging. A hypointense tubular structure was identified in the cystic component on 3D driven equilibrium sequencing. These imaging findings are unusual for cystic meningioma. However, awareness of these unusual imaging features is important to determine appropriate treatment strategies although cystic meningioma at the CPA is extremely rare.
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Affiliation(s)
- Saki Adachi
- Department of Radiology, Clinical Research
Institute, National Hospital Organization Kyushu Medical
Center, Fukuoka, Japan
| | - Koji Yamashita
- Department of Radiology, Clinical Research
Institute, National Hospital Organization Kyushu Medical
Center, Fukuoka, Japan
| | - Akira Nakamizo
- Department of Neurosurgery, Clinical
Research Institute, National Hospital Organization Kyushu Medical
Center, Fukuoka, Japan
| | - Toshiyuki Amano
- Department of Neurosurgery, Clinical
Research Institute, National Hospital Organization Kyushu Medical
Center, Fukuoka, Japan
| | - Seiya Momosaki
- Department of Pathology, Clinical Research
Institute, National Hospital Organization Kyushu Medical
Center, Fukuoka, Japan
| | - Tomoyuki Noguchi
- Department of Radiology, Clinical Research
Institute, National Hospital Organization Kyushu Medical
Center, Fukuoka, Japan
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Gonçalves FG, Zandifar A, Ub Kim JD, Tierradentro-García LO, Ghosh A, Khrichenko D, Andronikou S, Vossough A. Application of Apparent Diffusion Coefficient Histogram Metrics for Differentiation of Pediatric Posterior Fossa Tumors : A Large Retrospective Study and Brief Review of Literature. Clin Neuroradiol 2022; 32:1097-1108. [PMID: 35674799 DOI: 10.1007/s00062-022-01179-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/08/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE This study aimed to evaluate the application of apparent diffusion coefficient (ADC) histogram analysis to differentiate posterior fossa tumors (PFTs) in children. METHODS A total of 175 pediatric patients with PFT, including 75 pilocytic astrocytomas (PA), 59 medulloblastomas, 16 ependymomas, and 13 atypical teratoid rhabdoid tumors (ATRT), were analyzed. Tumors were visually assessed using DWI trace and conventional MRI images and manually segmented and post-processed using parametric software (pMRI). Furthermore, tumor ADC values were normalized to the thalamus and cerebellar cortex. The following histogram metrics were obtained: entropy, minimum, 10th, and 90th percentiles, maximum, mean, median, skewness, and kurtosis to distinguish the different types of tumors. Kruskal Wallis and Mann-Whitney U tests were used to evaluate the differences. Finally, receiver operating characteristic (ROC) curves were utilized to determine the optimal cut-off values for differentiating the various PFTs. RESULTS Most ADC histogram metrics showed significant differences between PFTs (p < 0.001) except for entropy, skewness, and kurtosis. There were significant pairwise differences in ADC metrics for PA versus medulloblastoma, PA versus ependymoma, PA versus ATRT, medulloblastoma versus ependymoma, and ependymoma versus ATRT (all p < 0.05). Our results showed no significant differences between medulloblastoma and ATRT. Normalized ADC data showed similar results to the absolute ADC value analysis. ROC curve analysis for normalized ADCmedian values to thalamus showed 94.9% sensitivity (95% CI: 85-100%) and 93.3% specificity (95% CI: 87-100%) for differentiating medulloblastoma from ependymoma. CONCLUSION ADC histogram metrics can be applied to differentiate most types of posterior fossa tumors in children.
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Affiliation(s)
- Fabrício Guimarães Gonçalves
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Alireza Zandifar
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Jorge Du Ub Kim
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Adarsh Ghosh
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Dmitry Khrichenko
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Savvas Andronikou
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Arastoo Vossough
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Kurokawa R, Kurokawa M, Baba A, Kim J, Capizzano A, Bapuraj J, Srinivasan A, Moritani T. Differentiation of pilocytic astrocytoma, medulloblastoma, and hemangioblastoma on diffusion-weighted and dynamic susceptibility contrast perfusion MRI. Medicine (Baltimore) 2022; 101:e31708. [PMID: 36343086 PMCID: PMC9646672 DOI: 10.1097/md.0000000000031708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
This study aimed to evaluate the diagnostic performance of dynamic susceptibility contrast (DSC) perfusion magnetic resonance imaging and apparent diffusion coefficient (ADC) for differentiating common posterior fossa tumors, pilocytic astrocytoma (PA), medulloblastoma (MB), and hemangioblastoma (HB). Between January 2016 and April 2022, we enrolled 23 (median age, 7 years [range, 2-26]; 12 female), 13 (10 years [1-24]; 3 female), and 12 (43 years [23-73]; 7 female) patients with PA, MB, and HB, respectively. Normalized relative cerebral blood volume and flow (nrCBV and nrCBF) and normalized mean ADC (nADCmean) were calculated from volume-of-interest and statistically compared. nADCmean was significantly higher in PA than in MB (PA: median, 2.2 [range, 1.59-2.65] vs MB: 0.93 [0.70-1.37], P < .001). nrCBF was significantly higher in HB than in PA and MB (PA: 1.10 [0.54-2.26] vs MB: 1.62 [0.93-3.16] vs HB: 7.83 [2.75-20.1], all P < .001). nrCBV was significantly different between all 3 tumor types (PA: 0.89 [0.34-2.28] vs MB: 1.69 [0.93-4.23] vs HB: 8.48 [4.59-16.3], P = .008 for PA vs MB; P < .001 for PA vs HB and MB vs HB). All tumors were successfully differentiated using an algorithmic approach with a threshold value of 4.58 for nrCBV and subsequent threshold value of 1.38 for nADCmean. DSC parameters and nADCmean were significantly different between PA, MB, and HB. An algorithmic approach combining nrCBV and nADCmean may be useful for differentiating these tumor types.
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Affiliation(s)
- Ryo Kurokawa
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
- * Correspondence: Ryo Kurokawa, Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109, USA (e-mail: )
| | - Mariko Kurokawa
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Akira Baba
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - John Kim
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Aristides Capizzano
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jayapalli Bapuraj
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Ashok Srinivasan
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Toshio Moritani
- Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
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Borni M, Abdelmouleh S, Cherif I, Daoud H, Boudawara MZ. Pediatric synchronous multifocal and disseminated cerebrospinal classic medulloblastoma revealed by bilateral decreased visual acuity: a case report. Childs Nerv Syst 2022; 38:2211-2215. [PMID: 35590112 DOI: 10.1007/s00381-022-05546-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/25/2022] [Indexed: 11/26/2022]
Abstract
Medulloblastoma (MB) is a rapidly growing malignant solid tumor that arises from stem cells located in the subependymal germinal matrix or outer granular layer of the cerebellum. It represents 15 to 30% of pediatric brain tumors and less than 1% of primary brain tumors. The reason for the high incidence of MB in children compared to adults is the embryonic origin of the tumor. In typical cases, MB manifests as a solitary lesion in the fourth ventricle or in the cerebellar parenchyma; cases of synchronous multifocal and disseminated MB are quite rare in patients without familial tumor syndromes. To date, only 7 cases in adults and a single pediatric case with Gorlin syndrome have been described previously. Here, the authors report a new case of synchronous multifocal classic cerebrospinal histologically confirmed MB in a 10-year-old male patient revealed by bilateral decreased visual acuity without any other localizing neurological signs. The authors will proceed with a review of the current literature regarding this rare entity.
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Affiliation(s)
- Mehdi Borni
- Department of Neurosurgery, UHC Habib Bourguiba, Sfax, Tunisia.
| | | | - Ines Cherif
- Department of Neurosurgery, UHC Habib Bourguiba, Sfax, Tunisia
| | - Hatem Daoud
- Department of Neurosurgery, UHC Habib Bourguiba, Sfax, Tunisia
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Sundaram M, Mishra RK, Uppar AM. Neurogenic stunned myocardium resulting from surgical brainstem handling during resection of paediatric recurrent medulloblastoma-a possible brain heart interaction. Childs Nerv Syst 2022; 38:2025-2028. [PMID: 35460357 DOI: 10.1007/s00381-022-05523-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/10/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Neurogenic stunned myocardium (NSM) is characterised by an acute onset cardiac dysfunction following an acute neurological insult which mimics acute coronary syndrome. CASE DETAILS A 12-year-old male child was admitted to the neuro-intensive care unit (NICU) following midline suboccipital craniotomy and resection of recurrent medulloblastoma. Postoperatively, in NICU, he developed tachycardia and hypotension, which was unresponsive to fluid challenge requiring norepinephrine infusion. Intraoperatively, during tumour resection from the dorsal medulla, episodes of hypertension and bradycardia were observed. Intraoperative blood loss was adequately managed with a stable hemodynamic profile without postoperative anaemia. An electrocardiogram showed sinus tachycardia with T wave inversion, and blood investigation revealed elevated cardiac troponin T levels. Point of care ultrasound (POCUS) of heart and lung showed features of NSM. Infusion dobutamine was added to achieve a target mean arterial pressure of 65 mm Hg with concomitant furosemide infusion and fluid restriction. Daily POCUS assessment of cardiac contractility and volume status was done. The patient was weaned from vasoactive drugs and ventilator following improvement of cardiac function and was discharged from NICU after 17 days. CONCLUSION NSM results from the excessive release of catecholamines following stimulation of trigger zones in the brain. To date, a handful of cases of pediatric NSM following primary brain tumour are reported where hydrocephalus resulted in trigger zone activation. In this presented case, direct brain stem stimulation during tumour resection might have triggered NSM. Irrespective of the cause, timely diagnosis and execution of supportive management in our patient resulted in a positive outcome.
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Affiliation(s)
- Mouleeswaran Sundaram
- Department of Neuroanaesthesia and Neurocritical Care, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
| | - Rajeeb Kumar Mishra
- Department of Neuroanaesthesia and Neurocritical Care, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Alok Mohan Uppar
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
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Zhang M, Wong SW, Wright JN, Wagner MW, Toescu S, Han M, Tam LT, Zhou Q, Ahmadian SS, Shpanskaya K, Lummus S, Lai H, Eghbal A, Radmanesh A, Nemelka J, Harward S, Malinzak M, Laughlin S, Perreault S, Braun KRM, Lober RM, Cho YJ, Ertl-Wagner B, Ho CY, Mankad K, Vogel H, Cheshier SH, Jacques TS, Aquilina K, Fisher PG, Taylor M, Poussaint T, Vitanza NA, Grant GA, Pfister S, Thompson E, Jaju A, Ramaswamy V, Yeom KW. MRI Radiogenomics of Pediatric Medulloblastoma: A Multicenter Study. Radiology 2022; 304:406-416. [PMID: 35438562 PMCID: PMC9340239 DOI: 10.1148/radiol.212137] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/09/2021] [Accepted: 02/08/2022] [Indexed: 08/03/2023]
Abstract
Background Radiogenomics of pediatric medulloblastoma (MB) offers an opportunity for MB risk stratification, which may aid therapeutic decision making, family counseling, and selection of patient groups suitable for targeted genetic analysis. Purpose To develop machine learning strategies that identify the four clinically significant MB molecular subgroups. Materials and Methods In this retrospective study, consecutive pediatric patients with newly diagnosed MB at MRI at 12 international pediatric sites between July 1997 and May 2020 were identified. There were 1800 features extracted from T2- and contrast-enhanced T1-weighted preoperative MRI scans. A two-stage sequential classifier was designed-one that first identifies non-wingless (WNT) and non-sonic hedgehog (SHH) MB and then differentiates therapeutically relevant WNT from SHH. Further, a classifier that distinguishes high-risk group 3 from group 4 MB was developed. An independent, binary subgroup analysis was conducted to uncover radiomics features unique to infantile versus childhood SHH subgroups. The best-performing models from six candidate classifiers were selected, and performance was measured on holdout test sets. CIs were obtained by bootstrapping the test sets for 2000 random samples. Model accuracy score was compared with the no-information rate using the Wald test. Results The study cohort comprised 263 patients (mean age ± SD at diagnosis, 87 months ± 60; 166 boys). A two-stage classifier outperformed a single-stage multiclass classifier. The combined, sequential classifier achieved a microaveraged F1 score of 88% and a binary F1 score of 95% specifically for WNT. A group 3 versus group 4 classifier achieved an area under the receiver operating characteristic curve of 98%. Of the Image Biomarker Standardization Initiative features, texture and first-order intensity features were most contributory across the molecular subgroups. Conclusion An MRI-based machine learning decision path allowed identification of the four clinically relevant molecular pediatric medulloblastoma subgroups. © RSNA, 2022 Online supplemental material is available for this article. See also the editorial by Chaudhary and Bapuraj in this issue.
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Minh Duc N. The impact of ADC-histogram parameters on the discrimina-tion between medulloblastoma, ependymoma, and pilocytic astrocytoma. Clin Ter 2022; 173:369-376. [PMID: 35857056 DOI: 10.7417/ct.2022.2448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
PURPOSE Histograms can be determined throughout tumors, relying partly on existing tumor microstructure knowledge and the sampling effect from area of interest analyses. We aimed to investigate the impact of ADC histogram parameters in discriminating medulloblastoma, ependymoma, and pilocytic astrocytoma. METHODS This study received approval from the Institutional Ethics Review Committee of Children's Hospital 02. Processes were conducted according to relevant laws and regulations, and requirements for written informed consent were fulfilled. The study involved 24 patients at Children's Hospital 02 from February-December 2019. Group 1 included 12 children with medulloblastoma, group 2 included 5 with ependymoma, and group 3 included 7 with pilocytic astrocytoma. All patients underwent MRI followed by surgery or biopsy to obtain histopathological confirmations. RESULTS Our analysis indicated that AUC, sensitivity, and specificity were 96.7%, 91.7%, and 100%, respectively when ADCkurtosis (cut-off point = 2.34) was taken to differentiate between medulloblasto-mas and ependymomas. To distinguish between medulloblastomas and pilocytic astrocytomas, the cut-off points of ADCmean, ADCmedian, ADCmax, ADCmin, rADCmean, rADCmax, and rADCmin of 0.985, 0.910, 1.305, 0.710, 1.349, 1.738, and 1.251, were taken respectively with AUC, sensitivity, and specificity elicited at 100%. To discriminate between ependymomas and pilocytic astrocytomas, the cut-off points of ADCmean, ADCmedian, ADCmax, ADCmin, rADCmean, rADC-median, rADCmax and rADCmin were 1.010, 0.930, 1.270, 0.735, 1.346, 1.324, 1.676, and 1.273, respectively, with AUC, sensitivity, and specificity at 100%. CONCLUSION ADC histograms can facilitate differentiation among juvenile medulloblastoma, ependymoma, and pilocytic astrocytoma, providing reliable, objective evidence of tumor differentiation.
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Affiliation(s)
- N Minh Duc
- Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
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Bageac DV, Bulsara KR. A cerebellar hemangioblastoma and visual and sensory disturbances presenting post partum. Lancet 2022; 399:2065. [PMID: 35644156 DOI: 10.1016/s0140-6736(22)00822-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/24/2022] [Accepted: 04/29/2022] [Indexed: 10/18/2022]
Affiliation(s)
- Devin V Bageac
- Division of Neurosurgery, University of Connecticut Health Center, UConn Health, Farmington, CT, USA
| | - Ketan R Bulsara
- Division of Neurosurgery, University of Connecticut Health Center, UConn Health, Farmington, CT, USA.
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Moscovici S, Candanedo C, Spektor S, Cohen JE, Kaye AH. Solid vs. cystic predominance in posterior fossa hemangioblastomas: implications for cerebrovascular risks and patient outcome. Acta Neurochir (Wien) 2022; 164:1357-1364. [PMID: 33811520 DOI: 10.1007/s00701-021-04828-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/23/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hemangioblastomas (HGBs) are highly vascular benign tumors, commonly located in the posterior fossa, and 80% of them are sporadic. Patients usually present with features of raised intracranial pressure and cerebellar symptoms. HGB can be classified as either mostly cystic or solids. Although the solid component is highly vascularized, aneurysm or hemorrhagic presentation is rarely described, having catastrophic results. METHODS We identified 32 consecutive patients with posterior fossa HBG who underwent surgery from 2008 through 2020 at our medical center. Tumors were classified as predominantly cystic or solid according to radiological features. Resection was defined as gross total (GTR) or subtotal (STR). RESULTS During the study period, 32 posterior fossa HGBs were resected. There were 26 cerebellar lesions and 4 medullar lesions, and in 2 patients, both structures were affected. Predominant cystic tumors were seen in 15 patients and solids in 17. Preoperative digital subtraction angiography (DSA) was performed in 8 patients with solid tumors, and 4 showed tumor-related aneurysms. Embolization of the tumors was performed in 6 patients, including the four tumor-related aneurysms. GTR was achieved in 29 tumors (91%), and subtotal resection in 3 (9%). Three patients had postoperative lower cranial nerve palsy. Functional status was stable in 5 patients (16%), improved in 24 (75%), and 3 patients (9%) deteriorated. One patient died 2 months after the surgery. Two tumors recurred and underwent a second surgery achieving GTR. The mean follow-up was 42.7 months (SD ± 51.0 months). CONCLUSIONS Predominant cystic HGB is usually easily treated as the surgery is straightforward. Those with a solid predominance present a more complex challenge sharing features similar to arteriovenous malformations. Given the important vascular association of solid predominance HGB with these added risk factors, the preoperative assessment should include DSA, as in arteriovenous malformations, and endovascular intervention should be considered before surgery.
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Affiliation(s)
- Samuel Moscovici
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel.
| | - Carlos Candanedo
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel
| | - Sergey Spektor
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel
| | - José E Cohen
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel
| | - Andrew H Kaye
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel
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Abstract
ABSTRACT 18F-DOPA is a promising radiotracer used for both staging and restaging of primary brain tumors based on increased transport via the L-type large neutral amino acid transport system in tumor cells. Adult medulloblastoma is extremely rare. We present a case of 25-year-old man with posterior fossa medulloblastoma treated with surgery followed by chemotherapy and radiotherapy 5 years back, which later developed metastasis to left cerebral lobe treated with gamma knife followed by surgical debulking. Recent 18F-DOPA PET/CT demonstrates recurrence and disease progression on follow-up scan. 18F-DOPA PET/CT is extremely useful for characterizing brain tumors, response assessment, and prognosis.
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Affiliation(s)
- Fahad Marafi
- From the Department of Nuclear Medicine, Jaber Al-Ahmad Molecular Imaging Center
| | - Alyaa Sadeq
- From the Department of Nuclear Medicine, Jaber Al-Ahmad Molecular Imaging Center
| | - Abdulredha Esmail
- From the Department of Nuclear Medicine, Jaber Al-Ahmad Molecular Imaging Center
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Ellis TW, Goates AJ, Eschbacher KL, Giannini C, Lane JI, Van Gompel JJ, Carlson ML. Lipochoristoma of the Cerebellopontine Angle. Otol Neurotol 2022; 43:e394-e396. [PMID: 34772883 DOI: 10.1097/mao.0000000000003412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
| | | | | | - Caterina Giannini
- Department of Laboratory Medicine and Pathology
- Department of Neurologic Surgery
| | - John I Lane
- Department of Radiology, Mayo Clinic School of Medicine, Rochester, Minnesota
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Harris MK, Shatara M, Funk Z, Stanek J, Boué DR, Jones J, Finlay JL, Abdelbaki MS. Recurrent Wnt medulloblastoma treated with marrow-ablative chemotherapy and autologous hematopoietic progenitor cell rescue: a dual case report and review of the literature. Childs Nerv Syst 2022; 38:465-472. [PMID: 33948723 DOI: 10.1007/s00381-021-05197-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/28/2021] [Indexed: 11/27/2022]
Abstract
Wnt-activated medulloblastoma (MB) confers an excellent prognosis. However, specific treatment strategies for patients with relapsed Wnt-MB are unknown. We report two patients with recurrent beta-catenin nucleopositive Wnt-MB successfully treated by incorporating marrow-ablative chemotherapy and autologous hematopoietic progenitor cell rescue (HDCx/AuHPCR). We also present a review of the literature for previously reported cases of relapsed Wnt-MB. We propose that patients with recurrent Wnt-MB may be treated using a multi-disciplinary approach that includes HDCx/AuHPCR with or without re-irradiation.
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Affiliation(s)
- Micah K Harris
- The Division of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, 43205, USA
- The Ohio State University College of Medicine, Columbus, OH, 43210, USA
| | - Margaret Shatara
- The Division of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, 43205, USA
- The Division of Pediatric Hematology and Oncology, Washington University School of Medicine, 1 Children's Pl, St. Louis, MO, 63011, USA
| | - Zachary Funk
- The Division of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, 43205, USA
| | - Joseph Stanek
- The Division of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, 43205, USA
| | - Daniel R Boué
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital and The Ohio State University, Columbus, Ohio, 43210, USA
| | - Jeremy Jones
- The Department of Radiology, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA
| | - Jonathan L Finlay
- The Division of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, 43205, USA
| | - Mohamed S Abdelbaki
- The Division of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital and The Ohio State University, Columbus, OH, 43205, USA.
- The Division of Pediatric Hematology and Oncology, Washington University School of Medicine, 1 Children's Pl, St. Louis, MO, 63011, USA.
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Zhang HW, Zhang YQ, Liu XL, Mo YQ, Lei Y, Lin F, Feng YN. MR imaging features of Lhermitte-Duclos disease: Case reports and literature review. Medicine (Baltimore) 2022; 101:e28667. [PMID: 35089210 PMCID: PMC8797601 DOI: 10.1097/md.0000000000028667] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Lhermitte-Duclos disease (LDD) is a rare tumor of the nervous system with a typical "tiger striped'" sign, but its features on functional magnetic resonance imaging (fMRI) are still inconclusive. PATIENT CONCERNS To explore the characteristics of LDDs using fMRI. DIAGNOSES We report 3 cases of pathologically confirmed LDDs. INTERVENTIONS Three patients underwent brain tumor surgery. OUTCOMES All the patients had a good prognosis. LESSONS Magnetic resonance spectroscopy and susceptibility-weighted imaging combined with conventional MRI can be used to better diagnose LDDs. Perfusion-weighted imaging is not specific for distinguishing cerebellar tumors. The combined application of fMRI and conventional MRI can improve the accuracy of LDD diagnoses.
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Affiliation(s)
- Han-wen Zhang
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, 3002 SunGangXi Road, Shenzhen, China
| | - Yuan-qing Zhang
- Special Clinic, Shenzhen Children's Hospital, Shenzhen, YiTian Road, China
| | - Xiao-lei Liu
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, 3002 SunGangXi Road, Shenzhen, China
| | - Yong-qian Mo
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, 3002 SunGangXi Road, Shenzhen, China
| | - Yi Lei
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, 3002 SunGangXi Road, Shenzhen, China
| | - Fan Lin
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, 3002 SunGangXi Road, Shenzhen, China
| | - Yu-ning Feng
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, 3002 SunGangXi Road, Shenzhen, China
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Moon P, Theruvath J, Chang J, Song Y, Shpanskaya K, Maleki M, Cheng AG, Ahmad IN, Yeom KW. MRI Correlates of Ototoxicity in the Auditory Pathway in Children Treated for Medulloblastoma. Otol Neurotol 2022; 43:e97-e104. [PMID: 34739428 DOI: 10.1097/mao.0000000000003336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To assess diffusion and perfusion changes of the auditory pathway in pediatric medulloblastoma patients exposed to ototoxic therapies. STUDY DESIGN Retrospective cohort study. SETTING A single academic tertiary children's hospital. PATIENTS Twenty pediatric medulloblastoma patients (13 men; mean age 12.0 ± 4.8 yr) treated with platinum-based chemotherapy with or without radiation and 18 age-and-sex matched controls were included. Ototoxicity scores were determined using Chang Ototoxicity Grading Scale. INTERVENTIONS Three Tesla magnetic resonance was used for diffusion tensor and arterial spin labeling perfusion imaging. MAIN OUTCOME MEASURES Quantitative diffusion tensor metrics were extracted from the Heschl's gyrus, auditory radiation, and inferior colliculus. Arterial spin labeling perfusion of the Heschl's gyrus was also examined. RESULTS Nine patients had clinically significant hearing loss, or Chang grades more than or equal to 2a; 11 patients had mild/no hearing loss, or Chang grades less than 2a. The clinically significant hearing loss group showed reduced mean diffusivity in the Heschl's gyrus (p = 0.018) and auditory radiation (p = 0.037), and decreased perfusion in the Heschl's gyrus (p = 0.001). Mild/no hearing loss group showed reduced mean diffusivity (p = 0.036) in Heschl's gyrus only, with a decrease in perfusion (p = 0.008). There were no differences between groups in the inferior colliculus. There was no difference in fractional anisotropy between patients exposed to ototoxic therapies and controls. CONCLUSIONS Patients exposed to ototoxic therapies demonstrated microstructural and physiological alteration of the auditory pathway. The present study shows proof-of-concept use of diffusion tensor imaging to gauge ototoxicity along the auditory pathway. Future larger cohort studies are needed to assess significance of changes in diffusion tensor imaging longitudinally, and the relationship between these changes and hearing loss severity and longitudinal changes of the developing auditory white matter.
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Affiliation(s)
| | | | | | - Yohan Song
- Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear, Boston, Massachusetts
| | - Katie Shpanskaya
- Department of Radiology, Duke University School of Medicine, Durham, North Carolina
| | - Maryam Maleki
- Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Alan G Cheng
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine
| | - Iram N Ahmad
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine
| | - Kristen W Yeom
- Department of Radiology, Lucile Packard Children's Hospital, Stanford, California
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Acharya S, Guo Y, Patni T, Li Y, Wang C, Gargone M, Ashford JM, Wilson L, Faught A, Reddick WE, Patay Z, Gajjar A, Conklin HM, Merchant TE. Association Between Brain Substructure Dose and Cognitive Outcomes in Children With Medulloblastoma Treated on SJMB03: A Step Toward Substructure-Informed Planning. J Clin Oncol 2022; 40:83-95. [PMID: 34714708 PMCID: PMC8683226 DOI: 10.1200/jco.21.01480] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/31/2021] [Accepted: 09/29/2021] [Indexed: 01/03/2023] Open
Abstract
PURPOSE To characterize the association between neurocognitive outcomes (memory and processing speed) and radiation (RT) dose to the hippocampus, corpus callosum (CC), and frontal white matter (WM) in children with medulloblastoma treated on a prospective study, SJMB03. PATIENTS AND METHODS Patients age 3-21 years with medulloblastoma were treated at a single institution on a phase III study. The craniospinal RT dose was 23.4 Gy for average-risk patients and 36-39.6 Gy for high-risk patients. The boost dose was 55.8 Gy to the tumor bed. Patients underwent cognitive testing at baseline and once yearly for 5 years. Performance on tests of memory (associative memory and working memory) and processing speed (composite processing speed and perceptual speed) was analyzed. Mixed-effects models were used to estimate longitudinal trends in neurocognitive outcomes. Reliable change index and logistic regression were used to define clinically meaningful neurocognitive decline and identify variables associated with decline. RESULTS One hundred and twenty-four patients were eligible for inclusion, with a median neurocognitive follow-up of 5 years. Mean right and left hippocampal doses were significantly associated with decline in associative memory in patients without posterior fossa syndrome (all P < .05). Mean CC and frontal WM doses were significantly associated with decline in both measures of processing speed (all P < .05). Median brain substructure dose-volume histograms were shifted to the right for patients with a decline in associative memory or processing speed. The odds of decline in associative memory and composite processing speed increased by 23%-26% and by 10%-15% for every 1-Gy increase in mean hippocampal dose and mean CC or frontal WM dose, respectively. CONCLUSION Increasing RT dose to the CC or frontal WM and hippocampus is associated with worse performance on tests of processing speed and associative memory, respectively. Brain substructure-informed RT planning may mitigate neurocognitive impairment.
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Affiliation(s)
- Sahaja Acharya
- Department of Radiation Oncology, St Jude Children's Research Hospital, Memphis, TN
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Medicine, Baltimore, MD
| | - Yian Guo
- Department of Biostatistics, St Jude Children's Research Hospital, Memphis, TN
| | - Tushar Patni
- Department of Biostatistics, St Jude Children's Research Hospital, Memphis, TN
| | - Yimei Li
- Department of Biostatistics, St Jude Children's Research Hospital, Memphis, TN
| | - Chuang Wang
- Department of Radiation Oncology, St Jude Children's Research Hospital, Memphis, TN
| | - Melissa Gargone
- Department of Radiation Oncology, St Jude Children's Research Hospital, Memphis, TN
| | - Jason M. Ashford
- Department of Psychology, St Jude Children's Research Hospital, Memphis, TN
| | - Lydia Wilson
- Department of Radiation Oncology, St Jude Children's Research Hospital, Memphis, TN
| | - Austin Faught
- Department of Radiation Oncology, St Jude Children's Research Hospital, Memphis, TN
| | - Wilburn E. Reddick
- Department of Diagnostic Imaging, St Jude Children's Research Hospital, Memphis, TN
| | - Zoltan Patay
- Department of Diagnostic Imaging, St Jude Children's Research Hospital, Memphis, TN
| | - Amar Gajjar
- Division of Neuro-Oncology, St Jude Children's Research Hospital, Memphis, TN
| | - Heather M. Conklin
- Department of Psychology, St Jude Children's Research Hospital, Memphis, TN
| | - Thomas E. Merchant
- Department of Radiation Oncology, St Jude Children's Research Hospital, Memphis, TN
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40
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Dasgupta A, Maitre M, Pungavkar S, Gupta T. Magnetic Resonance Imaging in the Contemporary Management of Medulloblastoma: Current and Emerging Applications. Methods Mol Biol 2022; 2423:187-214. [PMID: 34978700 DOI: 10.1007/978-1-0716-1952-0_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Medulloblastoma, the most common malignant primary brain tumor in children, is now considered to comprise of four distinct molecular subgroups-wingless (WNT), sonic hedgehog (SHH), Group 3, and Group 4 medulloblastoma, each associated with distinct developmental origins, unique transcriptional profiles, diverse phenotypes, and variable clinical behavior. Due to its exquisite anatomic resolution, multiparametric nature, and ability to image the entire craniospinal axis, magnetic resonance imaging (MRI) is the preferred and recommended first-line imaging modality for suspected brain tumors including medulloblastoma. Preoperative MRI can reliably differentiate medulloblastoma from other common childhood posterior fossa masses such as ependymoma, pilocytic astrocytoma, and brainstem glioma. On T1-weighted images, medulloblastoma is generally iso- to hypointense, while on T2-weighted images, the densely packed cellular component of the tumor is significantly hypointense and displays restricted diffusion on diffusion-weighted imaging. Following intravenous gadolinium, medulloblastoma shows significant but variable and heterogeneous contrast enhancement. Given the propensity of neuraxial spread in medulloblastoma, sagittal fat-suppressed T1-postcontrast spinal MRI is recommended to rule out leptomeningeal metastases for accurate staging. Following neurosurgical excision, postoperative MRI done within 24-48 h confirms the extent of resection, accurately quantifying residual tumor burden imperative for risk assignment. Post-treatment MRI is needed to assess response and effectiveness of adjuvant radiotherapy and systemic chemotherapy. After completion of planned therapy, surveillance MRI is recommended periodically on follow-up for early detection of recurrence for timely institution of salvage therapy, as well as for monitoring treatment-related late complications. Recent studies suggest that preoperative MRI can reliably identify SHH and Group 4 medulloblastoma but has suboptimal predictive accuracy for WNT and Group 3 tumors. In this review, we focus on the role of MRI in the diagnosis, staging, and quantifying residual disease; post-treatment response assessment; and periodic surveillance, and provide a brief summary on radiogenomics in the contemporary management of medulloblastoma.
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Affiliation(s)
- Archya Dasgupta
- Department of Radiation Oncology, Neuro-Oncology Disease Management Group, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India.
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
| | - Madan Maitre
- Department of Radiation Oncology, Neuro-Oncology Disease Management Group, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sona Pungavkar
- Department of Radiodiagnosis and Imaging, Global Hospitals, Mumbai, India
| | - Tejpal Gupta
- Department of Radiation Oncology, Neuro-Oncology Disease Management Group, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
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41
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Filippi L, Bagni O, Spinelli GP. Letter to the Editor Regarding " 18F-DOPA Positron Emission Tomography in Medulloblastoma: 2 Case Reports". World Neurosurg 2021; 150:253-254. [PMID: 34098659 DOI: 10.1016/j.wneu.2021.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 01/09/2023]
Affiliation(s)
- Luca Filippi
- Department of Nuclear Medicine, "Santa Maria Goretti" Hospital, Latina, Italy.
| | - Oreste Bagni
- Department of Nuclear Medicine, "Santa Maria Goretti" Hospital, Latina, Italy
| | - Gian Paolo Spinelli
- UOC Territorial Oncology AUSL Latina-CdS Aprilia-University of Rome "Sapienza", Rome, Italy
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Sleurs C, Jacobs S, Counsell SJ, Christiaens D, Tournier JD, Sunaert S, Van Beek K, Uyttebroeck A, Deprez S, Batalle D, Lemiere J. Brain network hubs and cognitive performance of survivors of childhood infratentorial tumors. Radiother Oncol 2021; 161:118-125. [PMID: 34102233 DOI: 10.1016/j.radonc.2021.05.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 04/09/2021] [Accepted: 05/31/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Childhood infratentorial tumor patients frequently suffer from long-term cognitive deficits. As each constituent of their treatment can lead to neurotoxicity, cascade effects can lead to profound reorganization of the underlying brain network, the so-called 'connectome'. However, to date, few studies have assessed the relationship between brain network topology, the functional role of network hubs (i.e. highly connected regions), and neurocognitive outcomes in adult survivors of childhood infratentorial tumors. METHODS In this cross-sectional study, childhood infratentorial tumor survivors (n = 21: pilocytic astrocytoma (n = 8), ependymoma (n = 1) and medulloblastoma (n = 12)) and healthy controls (n = 21) were recruited. Using multishell diffusion-weighted MRI, microstructural organization and topology of supratentorial white matter was investigated; using a voxel-based approach, a fixel-based analysis, and a graph theoretical approach. In addition, neurocognitive subscales of the WAIS-IV intelligence test, and their relationship with nodal strength and network efficiency metrics were assessed. RESULTS Similar to earlier studies, we observed widespread decreases in fractional anisotropy (FA) in patients compared to controls, based on voxel-based analyses. In addition, the fixel-based analyses dissociated macro- from microstructural changes, which were encountered in in infratentorial versus supratentorial brain areas, respectively. Finally, regional reorganization (i.e. differences in local efficiency) occurred mainly in hubs, which suggests a specific vulnerability of these areas. These hubs were not only mostly affected, but also most strongly correlated with the intelligence subscales. CONCLUSION This study suggests that network hubs are functionally important for intellectual outcomes in infratentorial tumor survivors. Furthermore, these regions could be the primary targets of treatment toxicity. Validation of this specific hypothesis in larger samples is required.
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Affiliation(s)
| | - Sandra Jacobs
- Department of Oncology, KU Leuven, Belgium; Department of Pediatric Hematology and Oncology, University Hospitals Leuven, Belgium
| | - Serena J Counsell
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Daan Christiaens
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom; Department of Imaging and Pathology, KU Leuven, Belgium
| | - J-Donald Tournier
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom
| | - Stefan Sunaert
- Department of Radiology, University Hospitals Leuven, Belgium; Department of Imaging and Pathology, KU Leuven, Belgium
| | - Karen Van Beek
- Department of Radiotherapy, University Hospitals Leuven, Belgium
| | - Anne Uyttebroeck
- Department of Oncology, KU Leuven, Belgium; Department of Pediatric Hematology and Oncology, University Hospitals Leuven, Belgium
| | - Sabine Deprez
- Department of Imaging and Pathology, KU Leuven, Belgium
| | - Dafnis Batalle
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering, King's College London, United Kingdom; Department of Forensic and Neurodevelopmental Science, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom
| | - Jurgen Lemiere
- Department of Pediatric Hematology and Oncology, University Hospitals Leuven, Belgium
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Aleksonis HA, Krishnamurthy LC, King TZ. White matter hyperintensity volumes are related to processing speed in long-term survivors of childhood cerebellar tumors. J Neurooncol 2021; 154:63-72. [PMID: 34231115 DOI: 10.1007/s11060-021-03799-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/25/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE Across several clinical populations, higher white matter hyperintensity (WMH) burden is consistently associated with decreases in cognitive performance, especially processing speed. Research of childhood cancer survivors has not utilized WMH quantification methodology to better understand the impact of WMH burden and its relationship with core cognitive skills. The present study aimed to quantify WMH volumes in a sample of long-term survivors of childhood cerebellar tumor and investigate the relationships with performance on a measure of oral processing speed. To further explore brain-behavior relationships, multivariate sparse canonical correlations was employed to identify WMH areas that predict processing speed performance. METHODS Thirty-five survivors and 56 healthy controls underwent neuroimaging and completed a measure of oral processing speed. The survivor group was further divided based on treatment (i.e., chemoradiation therapy (n = 20) vs. surgery only (n = 15)) to better understand the impact of treatment. RESULTS Survivors, and especially those treated with chemoradiation therapy, showed higher total WMH volumes and slower processing speed. Higher total WMH volumes were significantly associated with poorer processing speed (r = - 0.492, p = 0.003). Multivariate brain-behavior relationships revealed that periventricular WMHs were significantly associated with slower processing speed performance (p < 0.05). CONCLUSION Results exemplify that long-term survivors treated with and without chemoradiation therapy are at increased risk of developing higher WMH volumes compared to healthy peers. In addition, processing speed was robustly shown to be related to periventricular WMHs using an automated neuroimaging pipeline. This methodology to monitor WMH burden has the potential to be implemented efficiently with routine clinical neuroimaging of cancer survivors.
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Affiliation(s)
- Holly A Aleksonis
- Department of Psychology and the Neuroscience Institute, Georgia State University, Urban Life Building, 11th Floor, 140 Decatur St, Atlanta, GA, 30303, USA
| | - Lisa C Krishnamurthy
- Center for Visual and Neurocognitive Rehabilitation, Atlanta Veteran's Affairs Medical Center, Decatur, GA, USA
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA, USA
| | - Tricia Z King
- Department of Psychology and the Neuroscience Institute, Georgia State University, Urban Life Building, 11th Floor, 140 Decatur St, Atlanta, GA, 30303, USA.
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Hirono S, Gao Y, Matsutani T, Ikeda JI, Yokoo H, Iwadate Y. Metabolic, immunohistochemical, and genetic profiling of a cerebellar liponeurocytoma with spinal dissemination: a case report and review of the literature. Brain Tumor Pathol 2021; 38:257-262. [PMID: 34138409 DOI: 10.1007/s10014-021-00405-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 10/21/2022]
Abstract
Cerebellar liponeurocytoma (cLNC), categorized as a World Health Organization grade II tumor, is a rare neoplasm characterized by advanced neuronal/neurocytic differentiation and focal lipid accumulation in neuroepithelial tumor cells. However, the expression and genetic profiling of cLNC have been poorly studied. A 44-year-old woman with a three-year history of cerebellar ataxia and numbness in lower extremities underwent radiological examination revealing multiple contrast-enhancing tumors at the floor of the fourth ventricle and in the lower vermis, and spinal dissemination. The high uptake of 11 C-methionine in positron emission tomography (Met-PET) supported the preoperative cLNC diagnosis. Subtotal removal of the tumor around the obex and inferior vermis was performed. Histologically, the tumor was composed of small, uniform cells with round nuclei in a sheet-like fashion. Tumor cells were diffusely reactive for the neuronal markers synaptophysin and neurofilament. Vacuolate cells with a displacement of nuclei suggested the accumulation of lipid, which was further supported by immunohistochemical staining of S-100. These findings confirmed the diagnosis of cLNC. Next-generation sequencing of tumoral DNA detected a splice site mutation in the ATRX gene. Further reports of cLNC cases with detailed expression and genetic profiles are essential for precise diagnosis and clarifying the oncogenic pathway in cLNC.
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Affiliation(s)
- Seiichiro Hirono
- Department of Neurological Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-city, Chiba, 260-8670, Japan.
| | - Yue Gao
- Department of Neurological Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-city, Chiba, 260-8670, Japan
| | - Tomoo Matsutani
- Department of Neurological Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-city, Chiba, 260-8670, Japan
| | - Jun-Ichiro Ikeda
- Diagnostic Pathology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-city, Chiba, 260-8670, Japan
| | - Hideaki Yokoo
- Department of Human Pathology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Yasuo Iwadate
- Department of Neurological Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-city, Chiba, 260-8670, Japan
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Abstract
ABSTRACT Hemangioblastoma (HB) is the most common primary intra-axial posterior fossa tumor in adults and is a benign vascular neoplasm. We report the case of a 73-year-old man suffering from biochemical recurrence of prostate cancer where intense overexpression of prostate-specific membrane antigen (PSMA) was observed in HB in a PSMA PET/CT. Overexpression of PSMA in tumor-associated vascular structures has been proposed as an explanation of PSMA ligand uptake in several nonprostatic tumors. Given the pathological nature of HB, this mechanism may explain the intense overexpression of PSMA observed in present case.
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Affiliation(s)
| | | | | | - Kim Entezari
- Department of Urology, CHU Saint Pierre, Université Libre de Bruxelles, Brussels, Belgium
| | | | | | - Diana Ene
- From the Departments of Nuclear Medicine
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ArunRaj ST, Kumar A, Kp H, Mohan N, Gupta S, Tripathi M, Bal C. Metastatic Medulloblastoma: 18F-FDG and 68Ga-DOTANOC PET/CT in Response Evaluation. Clin Nucl Med 2021; 46:e262-e263. [PMID: 33315670 DOI: 10.1097/rlu.0000000000003435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT We describe the utility of molecular imaging with 18F-FDG and 68Ga-DOTANOC PET for treatment response assessment in a case of metastatic medulloblastoma. 18F-FDG and 68Ga-DOTANOC PET/CT revealed extensive metastases to bone and bone marrow. Patient subsequently had an excellent response to systemic chemotherapy which was evidenced by resolution of tracer-avid skeletal lesions on both FDG and DOTANOC PET/CT.
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Affiliation(s)
| | | | - Haresh Kp
- Radiation Oncology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Subhash Gupta
- Radiation Oncology, All India Institute of Medical Sciences, New Delhi, India
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Zheng H, Li J, Liu H, Wu C, Gui T, Liu M, Zhang Y, Duan S, Li Y, Wang D. Clinical-MRI radiomics enables the prediction of preoperative cerebral spinal fluid dissemination in children with medulloblastoma. World J Surg Oncol 2021; 19:134. [PMID: 33888125 PMCID: PMC8063474 DOI: 10.1186/s12957-021-02239-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 04/12/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Medulloblastoma (MB) is the most common pediatric embryonal tumor. Accurate identification of cerebral spinal fluid (CSF) dissemination is important in prognosis prediction. Both MRI of the central nervous system (CNS) and CSF cytology will appear false positive and negative. Our objective was to investigate the added value of preoperative-enhanced T1-weighted image-based radiomic features to clinical characteristics in predicting preoperative CSF dissemination for children with MB. MATERIALS AND METHODS This retrospective study included 84 children with histopathologically confirmed MB between November 2006 and November 2018 (training cohort, n=60; internal validation cohort, n=24). A set of cases between December 2018 and February 2020 were used for external validation (n=40). The children with normal head and spine magnetic resonance images (MRI) and no subsequent dissemination in 1 year were diagnosed as non-CSF dissemination. The CSF dissemination was manifested as intracranial or intraspinal nodular-enhanced lesions. Clinical features were collected, and conventional MRI features of preoperative head MRI examinations were evaluated. A total of 385 radiomic features were extracted from preoperative-enhanced T1-weighted images. Minimum redundancy, maximum correlation, and least absolute shrinkage and selection operator were performed to select the features with the best performance in predicting preoperative CSF dissemination. A combined clinical-MRI radiomic prediction model was developed using multivariable logistic regression. Receiver operating curve analysis (ROC) was used to validate the predictive performance. Nomogram and decision curve analysis (DCA) were developed to evaluate the clinical utility of the combined model. RESULTS One clinical and nine radiomic features were selected for predicting preoperative CSF dissemination. The combined model incorporating clinical and radiomic features had the best predictive performance in the training cohort with an AUC of 0.89. This was validated in the internal and external cohorts with AUCs of 0.87 and 0.73. The clinical utility of the model was confirmed by a clinical-MRI radiomic nomogram and DCA. CONCLUSIONS The combined model incorporating clinical, conventional MRI, and radiomic features could be applied to predict preoperative CSF dissemination for children with MB as a noninvasive biomarker, which could aid in risk evaluation.
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Affiliation(s)
- Hui Zheng
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinning Li
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huanhuan Liu
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chenqing Wu
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Gui
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ming Liu
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuzhen Zhang
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shaofeng Duan
- GE Healthcare, Pudong New Town, No.1, Huatuo Road, Shanghai, 210000, China
| | - Yuhua Li
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Dengbin Wang
- Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Liu Z, He Y, Fu J, Wu J, Song T, Wang Y, Huang T. Lhermitte-Duclos disease: A case report and literature review. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2021; 46:195-199. [PMID: 33678658 PMCID: PMC10929790 DOI: 10.11817/j.issn.1672-7347.2021.190574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Indexed: 11/03/2022]
Abstract
Lhermitte-Duclos disease (LDD) is a type of rare brain tumor located in posterior fossa. A patient with LDD located in the left cerebellum and vermis was admitted by the Department of Neurosurgery, Xiangya Hospital, Central South University. MRI scan showed slightly heterogeneous enhancement at the region close to vermis. The patient underwent partial resection on August 11, 2016 without postoperative chemoradiotherapy. The progress free survival was 11 months and the overall survival was 17 months. What the case reveals is that the partial resection is not beneficial to these patients with LDD as the residual lesion probably recurs in a short term after operation. The pathogenesis, diagnosis and treatment of LDD are explored and summarized in combination with relevant literature.
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Affiliation(s)
- Zhiqiang Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008.
| | - Yanqing He
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008
| | - Jiaxin Fu
- Grade of 2015 in Oral Medicine, Medical College of Jinzhou Medical University, Jinzhou Liaoning 121001, China
| | - Jun Wu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008
| | - Tao Song
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008
| | - Ying Wang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008
| | - Tianxiang Huang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008.
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Ueno K, Nonaka M, Isozaki H, Kamei T, Takeda J, Asai A. Resection of a recurrent medulloblastoma in the anterior middle part of the aqueduct with a flexible endoscope: a case report. Childs Nerv Syst 2021; 37:665-669. [PMID: 32666154 DOI: 10.1007/s00381-020-04799-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/09/2020] [Indexed: 11/26/2022]
Abstract
Resection or biopsy of intraventricular brain tumors using an endoscope has become common, but the limitations of these procedures are not clear. Manipulation to access a tumor that arises from the blind angle of the rigid endoscope, such as the anterior part of the aqueduct, is limited. We report here that we successfully resected a recurrent medulloblastoma in the anterior part of the aqueduct using only a flexible endoscope. This method appears to be suitable for poorly vascularized and suctionable tumors that arise in the blind angle of a rigid endoscope.
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Affiliation(s)
- Katsuya Ueno
- Department of Neurosurgery, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Masahiro Nonaka
- Department of Neurosurgery, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka, 573-1010, Japan.
| | - Haruna Isozaki
- Department of Neurosurgery, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Takamasa Kamei
- Department of Neurosurgery, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Junichi Takeda
- Department of Neurosurgery, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Akio Asai
- Department of Neurosurgery, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka, 573-1010, Japan
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Grassiot B, Beuriat PA, Di Rocco F, Leblond P, Faure-Conter C, Szathmari A, Mottolese C. Surgical management of posterior fossa medulloblastoma in children: The Lyon experience. Neurochirurgie 2021; 67:52-60. [PMID: 33482236 DOI: 10.1016/j.neuchi.2021.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 11/22/2020] [Accepted: 01/06/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Modern approach for the treatment of posterior fossa medulloblastomas remains a challenge for pediatric neurosurgeons and pediatric oncologists and requires a multidisciplinary approach to optimize survival and clinical results. MATERIAL AND METHODS We report the surgical principles of the treatment of posterior fossa medulloblastomas in children and how to avoid technical mistakes especially in very young patients. We also report our experience in a series of 64 patients operated from a medulloblastoma between 2000 and 2018 in Lyon. RESULTS All patients had a craniospinal MRI. Eighty-one percent of the patients (n=50) had strictly midline tumor while 19% (n=14) had lateralized one. Eleven percent (n=7) had metastasis at diagnosis on the initial MRI. Forty-one percent (n=29) had an emergency ETV to treat hydrocephaly and the intracranial hypertension. All patient underwent a direct approach and a complete removal was achieved in 78% (n=58) of the cases on the postoperative MRI realized within 48h postsurgery. Histological findings revealed classical medulloblastoma in 73% (n=46), desmoplastic medulloblastoma in 17% (n=11) and anaplastic/large cell medulloblastoma in 10% (n=7). Patients were classified as low risk in 7 cases, standard risk in 30 cases and high risk in 27 cases. Ninety-six percent (n=61) of the patient received radiotherapy. Seventy-six percent (n=48) received pre-irradiation or adjuvant chemotherapy. At last follow-up in December 2018, 65% (n=41) of the patient were in complete remission, 12% (n=8) were in relapse and 27% (n=15) had died from their disease. The overall survival at five , ten and fifteen years for all the series was of 76%, 73% and 65.7% respectively. CONCLUSIONS Medulloblastomas remain a chimiosensible and radiosensible disease and the complete surgical removal represents a favorable prognostic factor. The extension of surgery has also to be weighted in consideration of the new biomolecular and genetic knowledge that have to be integrated by surgeons to improve quality of life of patients.
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Affiliation(s)
- B Grassiot
- Department of Pediatric Neurosurgery, hôpital Femme-Mère-Enfant, 32, avenue du Doyen Jean-Lépine, 69677 Lyon Cedex, France
| | - P A Beuriat
- Department of Pediatric Neurosurgery, hôpital Femme-Mère-Enfant, 32, avenue du Doyen Jean-Lépine, 69677 Lyon Cedex, France
| | - F Di Rocco
- Department of Pediatric Neurosurgery, hôpital Femme-Mère-Enfant, 32, avenue du Doyen Jean-Lépine, 69677 Lyon Cedex, France
| | - P Leblond
- Department of Pediatric Hematology and Oncology, Institut d'hématologie et d'oncologie pédiatrique, 69008 Lyon, France
| | - C Faure-Conter
- Department of Pediatric Hematology and Oncology, Institut d'hématologie et d'oncologie pédiatrique, 69008 Lyon, France
| | - A Szathmari
- Department of Pediatric Neurosurgery, hôpital Femme-Mère-Enfant, 32, avenue du Doyen Jean-Lépine, 69677 Lyon Cedex, France
| | - C Mottolese
- Department of Pediatric Neurosurgery, hôpital Femme-Mère-Enfant, 32, avenue du Doyen Jean-Lépine, 69677 Lyon Cedex, France.
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