1
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Hui C, Sum R. Hepatic GIST metastases: an illustrative case series. BJR Case Rep 2022; 8:20210166. [PMID: 36177254 PMCID: PMC9499438 DOI: 10.1259/bjrcr.20210166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/12/2021] [Accepted: 12/13/2021] [Indexed: 11/05/2022] Open
Abstract
Gastrointestinal stromal tumours (GISTs) are uncommon mesenchymal tumours affecting the gastrointestinal tract. The liver is one of the most common sites for metastatic disease from GISTs and may exhibit a variety of CT and MR imaging appearances. These imaging features can vary prior to and following treatment with tyrosine kinase inhibitors. We report on the spectrum of imaging appearances of hepatic GIST metastases on multiphase contrast CT imaging and hepatocyte-specific contrast enhanced MR. To our knowledge, there are no published series specifically focusing on the appearances of liver metastases from GISTs. An awareness of the protean appearances and pitfalls on CT and MRI of hepatic GIST metastases, prior to and at different times along the treatment pathway, will assist in early diagnosis of liver metastases, accurate assessment of tumour response and detection of recurrent metastatic disease.
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Affiliation(s)
- Cathryn Hui
- Department of Diagnostic Imaging, Monash Medical Centre, Melbourne, Australia
- Monash University, Melbourne, Australia
| | - Reuben Sum
- Department of Diagnostic Imaging, Monash Medical Centre, Melbourne, Australia
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2
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Bansal A, Goyal S, Goyal A, Jana M. WHO classification of soft tissue tumours 2020: An update and simplified approach for radiologists. Eur J Radiol 2021; 143:109937. [PMID: 34547634 DOI: 10.1016/j.ejrad.2021.109937] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023]
Abstract
The WHO classification of soft tissue tumours categorizes the lesions based on histological differentiation. In the recent fifth edition (2020), many new entities have been introduced, based on their distinct biological behaviour, genetics and morphology. With the recent advances and better understanding of molecular genetics, several novel recurrent genetic alterations have been incorporated in this edition. These may serve as reliable diagnostic and prognostic markers for various soft tissue tumours. Though predominantly a pathologist's game; the radiologists must be aware of the recent updates to contribute towards the optimal diagnosis and management of soft tissue tumours. The imaging features of the new entities have not yet been described but are expected to be explored in the coming years. We hereby present a concise review of the updates in the recent WHO classification of soft tissue tumours. We have tried to emphasize the novel molecular genetics and their surrogate immunohistochemical markers which have brought a paradigm shift in the diagnosis, therapeutics, and prognosis of soft tissue tumours. We also present simplified diagnostic algorithms to characterize soft tissue tumours based on the clinico-radiological features.
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Affiliation(s)
- Abhinav Bansal
- Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, New Delhi, India
| | - Surbhi Goyal
- Department of Pathology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - Ankur Goyal
- Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, New Delhi, India.
| | - Manisha Jana
- Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences, New Delhi, India
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3
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Ceausu M, Socea B, Ciobotaru VP, Constantin VD, Enache S, Enache V, Bancu A, Socea LI, Șerban D, Predescu D, Smarandache CG, Ceausu Z. A multidisciplinary approach in the diagnostic challenge of GIST. Exp Ther Med 2021; 22:1063. [PMID: 34434277 PMCID: PMC8353641 DOI: 10.3892/etm.2021.10497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/30/2021] [Indexed: 12/12/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are the most common malignant mesenchymal lesions of the gastrointestinal tract. They originate from the interstitial cells of Cajal and are characterized by overexpression of the tyrosine kinase receptor, protein product of c-KIT gene (KIT). In this retrospective study, conducted over a period of 10 years, we retrieved from our database, a total number of 57 patients, admitted and operated in the surgical department of ‘Sf. Pantelimon’ Emergency Clinical Hospital, Bucharest, for digestive tumors, histopathologically confirmed as GISTs. More than half of the cases presented as surgical emergencies and the tumors found during the surgical procedures, which proved to be GISTs, were sometimes difficult to differentiate from other mesenchymal tumors, both for the clinician and the pathologist. The diagnosis of GIST relies mostly on pathology and immunohistochemistry, but also on clinical and imagistic data. The most common emergencies were digestive hemorrhage (associated with gastric location), followed by intestinal obstruction (especially for the ileal localization). The largest dimensions corresponded to gastric location. For selected indications (upper digestive sites), upper digestive endoscopy approaches 100% sensitivity. This study focuses on diagnosis of GISTs sustained by both clinical and imagistic methods, along with histopathology and immunohistochemistry techniques, according to the World Health Organization 2019 criteria. Even though the differential diagnosis of these tumors is challenging, an interdisciplinary cooperation with a multiple approach increases the odds of a correct positive diagnosis.
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Affiliation(s)
- Mihai Ceausu
- Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Bogdan Socea
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, 'Sf. Pantelimon' Emergency Clinical Hospital, 021659 Bucharest, Romania
| | - Vladimir Paul Ciobotaru
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, 'Sf. Pantelimon' Emergency Clinical Hospital, 021659 Bucharest, Romania
| | - Vlad Denis Constantin
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, 'Sf. Pantelimon' Emergency Clinical Hospital, 021659 Bucharest, Romania
| | - Simona Enache
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
| | - Valentin Enache
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
| | - Alice Bancu
- Pathology Department, 'Victor Babeş' Institute of Bucharest, 050096 Bucharest, Romania
| | - Laura Ileana Socea
- Department of Organic Chemistry, Faculty of Pharmacy, 'Carol Davila' University of Medicine and Pharmacy, 020956 Bucharest, Romania
| | - Dragoș Șerban
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, University Emergency Hospital, 050098 Bucharest, Romania
| | - Dragoș Predescu
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, 'Sf. Maria' Hospital, 011172 Bucharest, Romania
| | - Cătălin G Smarandache
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, University Emergency Hospital, 050098 Bucharest, Romania
| | - Zenaida Ceausu
- Pathology Department, 'Sf. Pantelimon' Emergency Hospital, 021659 Bucharest, Romania
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4
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Panbude SN, Ankathi SK, Ramaswamy AT, Saklani AP. Gastrointestinal Stromal Tumor (GIST) from esophagus to anorectum - diagnosis, response evaluation and surveillance on computed tomography (CT) scan. Indian J Radiol Imaging 2021; 29:133-140. [PMID: 31367084 PMCID: PMC6639866 DOI: 10.4103/ijri.ijri_354_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Gastrointestinal stromal tumor (GIST) are the most common non epithelial tumor of the gastrointestinal (GI) tract. They arise from interstitial cells of Cajal present in the myenteric plexus. They can also arise outside the GI tract from mesentery, retro peritoneum and omentum. With the advent of new targeted molecular therapy c- tyrosine kinase inhibitor (Imatinib), it has become important to differentiate between response and pseudo-progression of the disease as response evaluation criteria for GIST are different from Response Evaluation Criteria in Solid Tumors (RECIST). Purpose of this pictorial essay is to enumerate the characteristic CT features of GIST, and discuss atypical features and response evaluation criteria.
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Affiliation(s)
- Sushil N Panbude
- Department of Radiodiagnosis, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Suman K Ankathi
- Department of Radiodiagnosis, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Anant T Ramaswamy
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Avanish P Saklani
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
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5
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Katabathina VS, Marji H, Khanna L, Ramani N, Yedururi S, Dasyam A, Menias CO, Prasad SR. Decoding Genes: Current Update on Radiogenomics of Select Abdominal Malignancies. Radiographics 2021; 40:1600-1626. [PMID: 33001791 DOI: 10.1148/rg.2020200042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Technologic advances in chromosomal analysis and DNA sequencing have enabled genome-wide analysis of cancer cells, yielding considerable data on the genetic basis of malignancies. Evolving knowledge of tumor genetics and oncologic pathways has led to a better understanding of histopathologic features, tumor classification, tumor biologic characteristics, and imaging findings and discovery of targeted therapeutic agents. Radiogenomics is a rapidly evolving field of imaging research aimed at correlating imaging features with gene mutations and gene expression patterns, and it may provide surrogate imaging biomarkers that may supplant genetic tests and be used to predict treatment response and prognosis and guide personalized treatment options. Multidetector CT, multiparametric MRI, and PET with use of multiple radiotracers are some of the imaging techniques commonly used to assess radiogenomic associations. Select abdominal malignancies demonstrate characteristic imaging features that correspond to gene mutations. Recent advances have enabled us to understand the genetics of steatotic and nonsteatotic hepatocellular adenomas, a plethora of morphologic-molecular subtypes of hepatic malignancies, a variety of clear cell and non-clear cell renal cell carcinomas, a myriad of hereditary and sporadic exocrine and neuroendocrine tumors of the pancreas, and the development of targeted therapeutic agents for gastrointestinal stromal tumors based on characteristic KIT gene mutations. Mutations associated with aggressive phenotypes of these malignancies can sometimes be predicted on the basis of their imaging characteristics. Radiologists should be familiar with the genetics and pathogenesis of common cancers that have associated imaging biomarkers, which can help them be integral members of the cancer management team and guide clinicians and pathologists. Online supplemental material is available for this article. ©RSNA, 2020 See discussion on this article by Luna (pp 1627-1630).
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Affiliation(s)
- Venkata S Katabathina
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Haneen Marji
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Lokesh Khanna
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Nisha Ramani
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Sireesha Yedururi
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Anil Dasyam
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Christine O Menias
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
| | - Srinivasa R Prasad
- From the Department of Radiology, University of Texas Health at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX 78229 (V.S.K., H.M., L.K.); Departments of Radiology (S.Y., S.R.P.) and Pathology (N.R.), University of Texas MD Anderson Cancer Center, Houston, Tex; Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pa (A.D.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.)
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6
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Recht HS, Fishman EK. Carney-Stratakis syndrome: A dyad of familial paraganglioma and gastrointestinal stromal tumor. Radiol Case Rep 2020; 15:2071-2075. [PMID: 32944103 PMCID: PMC7481509 DOI: 10.1016/j.radcr.2020.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/29/2020] [Accepted: 08/01/2020] [Indexed: 12/02/2022] Open
Abstract
Carney-Stratakis syndrome is a rare, distinct dyad of familial paraganglioma and gastrointestinal stromal tumor, and is associated with germline mutations in the succinate dehydrogenase genes SDHB, SDHC, and SDHD. We present a unique case of a 45-year-old woman with Carney-Stratakis syndrome who initially presented with a palpable left neck mass. Further workup demonstrated 2 paragangliomas in the neck and multiple SDHB deficient gastrointestinal stromal tumors of the stomach. We describe the imaging findings and clinical course of this rare syndrome.
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7
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Alessandrino F, Smith DA, Tirumani SH, Ramaiya NH. Cancer genome landscape: a radiologist's guide to cancer genome medicine with imaging correlates. Insights Imaging 2019; 10:111. [PMID: 31781977 PMCID: PMC6883020 DOI: 10.1186/s13244-019-0800-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/26/2019] [Indexed: 12/12/2022] Open
Abstract
The introduction of high throughput sequence analysis in the past decade and the decrease in sequencing costs has made available an enormous amount of genomic data. These data have shaped the landscape of cancer genome, which encompasses mutations determining tumorigenesis, the signaling pathways involved in cancer growth, the tumor heterogeneity, and its role in development of metastases. Tumors develop acquiring a series of driver mutations over time. Of the many mutated genes present in cancer, only few specific mutations are responsible for invasiveness and metastatic potential, which, in many cases, have characteristic imaging appearance. Ten signaling pathways, each with targetable components, have been identified as responsible for cancer growth. Blockage of any of these pathways form the basis for molecular targeted therapies, which are associated with specific pattern of response and toxicities. Tumor heterogeneity, responsible for the different mutation pattern of metastases and primary tumor, has been classified in intratumoral, intermetastatic, intrametastatic, and interpatient heterogeneity, each with specific imaging correlates. The purpose of this article is to introduce the key components of the landscapes of cancer genome and their imaging counterparts, describing the types of mutations associated with tumorigenesis, the pathways of cancer growth, the genetic heterogeneity involved in metastatic disease, as well as the current challenges and opportunities for cancer genomics research.
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Affiliation(s)
- Francesco Alessandrino
- Department of Imaging, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA, 02215, USA. .,Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA.
| | - Daniel A Smith
- Department of Radiology, UH Cleveland Medical Center, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106, USA
| | - Sree Harsha Tirumani
- Department of Radiology, UH Cleveland Medical Center, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106, USA
| | - Nikhil H Ramaiya
- Department of Radiology, UH Cleveland Medical Center, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106, USA
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8
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Alessandrino F, Tirumani SH, Jagannathan JP, Ramaiya NH. Imaging surveillance of gastrointestinal stromal tumour: current recommendation by National Comprehensive Cancer Network and European Society of Medical Oncology-European Reference Network for rare adult solid cancers. Clin Radiol 2019; 74:746-755. [PMID: 31345555 DOI: 10.1016/j.crad.2019.06.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 06/24/2019] [Indexed: 12/23/2022]
Abstract
Imaging plays an active role in the surveillance of gastrointestinal stromal tumours (GISTs). Risk stratification schemes, based on size, mitotic count, and anatomical site of origin of the GIST, help in planning preoperative and postoperative imaging strategies especially in determining the frequency and duration of surveillance; however, there is no clear consensus on the optimal imaging strategies in patients with GISTs who are completely cured by surgery and patients who are at risk of recurrence. In addition, current surveillance protocols depend on the resectability of the primary tumour and presence of metastatic disease. The objective of this article is to provide a comprehensive review of the role of the different imaging methods for surveillance of GISTs, focusing on the guidelines recommended by National Comprehensive Cancer Network and European Society of Medical Oncology - European Network for Rare adult solid Cancers, and to propose practical guidelines for surveillance of GISTs for various risk categories.
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Affiliation(s)
- F Alessandrino
- Department of Imaging, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
| | - S H Tirumani
- Department of Imaging, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA; Department of Radiology, UH Cleveland Medical Center, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH 44106, USA
| | - J P Jagannathan
- Department of Imaging, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - N H Ramaiya
- Department of Imaging, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA; Department of Radiology, UH Cleveland Medical Center, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH 44106, USA
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9
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Herzberg M, Beer M, Anupindi S, Vollert K, Kröncke T. Imaging pediatric gastrointestinal stromal tumor (GIST). J Pediatr Surg 2018; 53:1862-1870. [PMID: 29685489 DOI: 10.1016/j.jpedsurg.2018.03.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/18/2018] [Accepted: 03/20/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Gastrointestinal stromal tumors (GIST) are extremely rare in children. Imaging plays a key role in staging and monitoring therapy (surgical and with tyrosine kinase inhibitors). The vast majority of articles addressing imaging of GIST base on adults and are based on CT. The subtype "pediatric GIST" - if at all - is only mentioned in a dependent clause. Although the imaging features in children and adults are similar, histology, clinical course and thus imaging approach are different. METHODS A PubMed search using the search terms "Gastrointestinal stromal tumor, GIST, WT GIST, children, pediatric, carney's triad, imaging, staging, follow-up, MRI, CEUS, ultrasonography, Positron emission tomography" was conducted. Studies that reported on laparoscopy, endoscopy and surgical techniques only were excluded. RESULTS Based on our selective literature review, we present alternative radiological imaging strategies using MRI, contrast enhanced ultrasound (CEUS) and PET-CT to stage and follow-up pediatric GIST patients. As pediatric GIST often is a chronic disease, minimizing exposure to ionizing radiation is mandatory. CONCLUSION MRI, contrast enhanced ultrasound and PET-CT instead of CT are the imaging modalities to evaluate pediatric GIST. TYPE OF STUDY Systematic review LEVEL OF EVIDENCE: III.
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Affiliation(s)
- Moriz Herzberg
- Department of Diagnostic and Interventional Radiology and Neuroradiology, Klinikum Augsburg, Stenglinstraße 2, 86156, Germany.
| | - Meinrad Beer
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Ulm, Albert-Einstein-Allee 23, 89081, Germany.
| | - Sudha Anupindi
- Department of Radiology at The Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104, USA.
| | - Kurt Vollert
- Department of Diagnostic and Interventional Radiology and Neuroradiology, Klinikum Augsburg, Stenglinstraße 2, 86156, Germany.
| | - Thomas Kröncke
- Department of Diagnostic and Interventional Radiology and Neuroradiology, Klinikum Augsburg, Stenglinstraße 2, 86156, Germany.
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10
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Jagannathan JP, Tirumani SH, Ramaiya NH. Imaging in Soft Tissue Sarcomas: Current Updates. Surg Oncol Clin N Am 2018; 25:645-75. [PMID: 27591491 DOI: 10.1016/j.soc.2016.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Soft tissue sarcomas (STS) are heterogeneous malignant tumors that have nonspecific imaging features. A combination of clinical, demographic, and imaging characteristics can aid in the diagnosis. Imaging provides important information regarding the tumor extent, pretreatment planning, and surveillance of patients with STS. In this article, we illustrate the pertinent imaging characteristics of the commonly occurring STS and some uncommon sarcomas with unique imaging characteristics.
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Affiliation(s)
- Jyothi P Jagannathan
- Department of Imaging, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
| | - Sree Harsha Tirumani
- Department of Imaging, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Nikhil H Ramaiya
- Department of Imaging, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
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11
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Levy AD, Manning MA, Al-Refaie WB, Miettinen MM. Soft-Tissue Sarcomas of the Abdomen and Pelvis: Radiologic-Pathologic Features, Part 1-Common Sarcomas: From the Radiologic Pathology Archives. Radiographics 2017; 37:462-483. [PMID: 28287938 DOI: 10.1148/rg.2017160157] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Soft-tissue sarcomas are a diverse group of rare mesenchymal malignancies that can arise at any location in the body and affect all age groups. These sarcomas are most common in the extremities, trunk wall, retroperitoneum, and head and neck. In the adult population, soft-tissue sarcomas arising in the abdomen and pelvis are often large masses at the time of diagnosis because they are usually clinically silent or cause vague or mild symptoms until they invade or compress vital organs. In contrast, soft-tissue sarcomas arising from the abdominal wall come to clinical attention earlier in the course of disease because they cause a palpable mass, abdominal wall deformity, or pain that is more clinically apparent. The imaging features of abdominal and pelvic sarcomas and abdominal wall sarcomas can be nonspecific and overlap with more common pathologic conditions, making diagnosis difficult or, in some cases, delaying diagnosis. Liposarcoma (well-differentiated and dedifferentiated liposarcomas), leiomyosarcoma, and gastrointestinal stromal tumor (GIST) are the most common intra-abdominal primary sarcomas. Any soft-tissue sarcoma can arise in the abdominal wall. Knowledge of the classification and pathologic features of soft-tissue sarcomas, the anatomic locations where they occur, and their cross-sectional imaging features helps the radiologist establish the diagnosis or differential diagnosis so that patients with soft-tissue sarcomas can receive optimal treatment and management. In part 1 of this article, the most common soft-tissue sarcomas (liposarcoma, leiomyosarcoma, and GIST) are reviewed, with a discussion on anatomic locations, classification, clinical considerations, and differential diagnosis. Part 2 will focus on the remainder of the soft-tissue sarcomas occurring in the abdomen and pelvis.
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Affiliation(s)
- Angela D Levy
- From the Departments of Radiology (A.D.L., M.A.M.) and Surgery (W.B.A.), Medstar Georgetown University Hospital, 3800 Reservoir Rd NW, Washington, DC 20007; the American Institute for Radiologic Pathology, Silver Spring, Md (M.A.M.); and the Center for Cancer Research, National Cancer Institute, Bethesda, Md (M.M.M.)
| | - Maria A Manning
- From the Departments of Radiology (A.D.L., M.A.M.) and Surgery (W.B.A.), Medstar Georgetown University Hospital, 3800 Reservoir Rd NW, Washington, DC 20007; the American Institute for Radiologic Pathology, Silver Spring, Md (M.A.M.); and the Center for Cancer Research, National Cancer Institute, Bethesda, Md (M.M.M.)
| | - Waddah B Al-Refaie
- From the Departments of Radiology (A.D.L., M.A.M.) and Surgery (W.B.A.), Medstar Georgetown University Hospital, 3800 Reservoir Rd NW, Washington, DC 20007; the American Institute for Radiologic Pathology, Silver Spring, Md (M.A.M.); and the Center for Cancer Research, National Cancer Institute, Bethesda, Md (M.M.M.)
| | - Markku M Miettinen
- From the Departments of Radiology (A.D.L., M.A.M.) and Surgery (W.B.A.), Medstar Georgetown University Hospital, 3800 Reservoir Rd NW, Washington, DC 20007; the American Institute for Radiologic Pathology, Silver Spring, Md (M.A.M.); and the Center for Cancer Research, National Cancer Institute, Bethesda, Md (M.M.M.)
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12
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Tirumani SH, Baheti AD, Tirumani H, O'Neill A, Jagannathan JP. Update on Gastrointestinal Stromal Tumors for Radiologists. Korean J Radiol 2017; 18:84-93. [PMID: 28096720 PMCID: PMC5240484 DOI: 10.3348/kjr.2017.18.1.84] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 09/14/2016] [Indexed: 12/19/2022] Open
Abstract
The management of gastrointestinal stromal tumors (GISTs) has evolved significantly in the last two decades due to better understanding of their biologic behavior as well as development of molecular targeted therapies. GISTs with exon 11 mutation respond to imatinib whereas GISTs with exon 9 or succinate dehydrogenase subunit mutations do not. Risk stratification models have enabled stratifying GISTs according to risk of recurrence and choosing patients who may benefit from adjuvant therapy. Assessing response to targeted therapies in GIST using conventional response criteria has several potential pitfalls leading to search for alternate response criteria based on changes in tumor attenuation, volume, metabolic and functional parameters. Surveillance of patients with GIST in the adjuvant setting is important for timely detection of recurrences.
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Affiliation(s)
- Sree Harsha Tirumani
- Department of Imaging, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Akshay D. Baheti
- Department of Radiology, Tata Memorial Centre, Mumbai 400012, India
| | - Harika Tirumani
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Ailbhe O'Neill
- Department of Imaging, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Jyothi P. Jagannathan
- Department of Imaging, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115, USA
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Soft-Tissue Sarcomas: An Update for Radiologists Based on the Revised 2013 World Health Organization Classification. AJR Am J Roentgenol 2016; 206:924-32. [PMID: 26998884 DOI: 10.2214/ajr.15.15498] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Soft-tissue sarcomas are a diverse group of malignancies, and our rapidly improving understanding of their molecular pathogenesis and treatment is leading to better clinical outcomes. The revised 2013 World Health Organization (WHO) classification of soft-tissue sarcomas introduced several important changes. We provide a comprehensive overview of the relevant changes for radiologists. CONCLUSION Rapid advances in the understanding of the pathogenesis and molecular biology of soft-tissue sarcomas led to major revisions in the 2013 WHO classification. To provide optimal multidisciplinary patient care, radiologists must remain up-to-date with the latest developments in the field of soft-tissue sarcomas to best correlate the histologic and imaging features of the various types of tumors and understand the unique patterns of treatment response and disease recurrence.
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