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Agarwal A, Rees JH, Sabat S. Toxic and Drug-Related White Matter Diseases of the Brain and Spine. Magn Reson Imaging Clin N Am 2024; 32:253-275. [PMID: 38555140 DOI: 10.1016/j.mric.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Toxic leukoencephalopathy and myelopathy are common neurologic complications of a wide range of chemotherapeutic and substance abuse agents. During the last decade, there has been a significant change in the profile of white matter toxins, primarily driven by the development and usage of new chemotherapeutic and immunotherapeutic agents and by the continuous increase in illicit drug abuse with contaminants. Neuroimaging in the form of MR imaging forms the cornerstone in the diagnosis of these entities, many of which are reversible and amenable to rapid correction. Chronic white matter changes are also seen with these toxins with gradually progressive clinicoradiological findings.
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Affiliation(s)
- Amit Agarwal
- Department of Radiology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - John H Rees
- Department of Radiology, University of Florida at Gainesville, 1600 Southwest Archer Road, Gainesville, FL 32608, USA
| | - Shyamsunder Sabat
- Department of Radiology, University of Florida at Gainesville, 1600 Southwest Archer Road, Gainesville, FL 32608, USA.
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2
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Feige J, Klausner F, Pfaff JAR, Trinka E, Pikija S, Safdarian M. Stroke-like presentation of acute toxic leukoencephalopathy due to capecitabine treatment with extensive intramyelinic edema. Chronic Dis Transl Med 2023; 9:258-262. [PMID: 37711866 PMCID: PMC10497845 DOI: 10.1002/cdt3.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 04/27/2023] [Accepted: 05/11/2023] [Indexed: 09/16/2023] Open
Affiliation(s)
- Julia Feige
- Department of Neurology, Neurocritical Care and Neurorehabilitation, Centre of Cognitive Neuroscience, Christian Doppler University HospitalParacelsus Medical University, Salzburg, Member of EpiCARESalzburgAustria
| | - Fritz Klausner
- Department of Neuroradiology, Christian Doppler University HospitalParacelsus Medical UniversitySalzburgAustria
| | - Johannes A. R. Pfaff
- Department of Neuroradiology, Christian Doppler University HospitalParacelsus Medical UniversitySalzburgAustria
| | - Eugen Trinka
- Department of Neurology, Neurocritical Care and Neurorehabilitation, Centre of Cognitive Neuroscience, Christian Doppler University HospitalParacelsus Medical University, Salzburg, Member of EpiCARESalzburgAustria
- Neuroscience Institute, Christian‐Doppler University HospitalParacelsus Medical University, Centre for Cognitive NeuroscienceSalzburgAustria
- Institute of Public Health, Medical Decision‐Making and HTAUMIT ‐ Private University for Health Sciences, Medical Informatics and TechnologyHall in TyrolAustria
| | - Slaven Pikija
- Department of Neurology, Neurocritical Care and Neurorehabilitation, Centre of Cognitive Neuroscience, Christian Doppler University HospitalParacelsus Medical University, Salzburg, Member of EpiCARESalzburgAustria
| | - Mahdi Safdarian
- Department of Neurology, Neurocritical Care and Neurorehabilitation, Centre of Cognitive Neuroscience, Christian Doppler University HospitalParacelsus Medical University, Salzburg, Member of EpiCARESalzburgAustria
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Dopke KM, El Seblani N, Mercer K, Naik S, Mainali G, Paul D. Tacrolimus Induced Leukoencephalopathy and Stroke-Like Symptoms: Case Report. Child Neurol Open 2023; 10:2329048X231171011. [PMID: 37101431 PMCID: PMC10123878 DOI: 10.1177/2329048x231171011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 04/04/2023] [Indexed: 04/28/2023] Open
Abstract
A 17-year-old female with sickle cell disease status post a recent stem cell transplant and on tacrolimus developed an acute expressive aphasia, dysphagia, and drooling. Brain MRI revealed diffuse restricted diffusion involving the bilateral corona radiata and areas of white matter in the right cerebral hemisphere most consistent with toxic leukoencephalopathy. Tacrolimus serum concentration was high at 19.3 ng/ml (ref 9-12 ng/ml) for which tacrolimus was discontinued. She was neurologically back at baseline 2 days later with the tacrolimus level improving to 8.2 ng/mL. Following discontinuation and the declining trend of her tacrolimus levels the patient returned to her neurologic baseline and was subsequently switched to mycophenolate mofetil for GVHD immunosuppression.
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Affiliation(s)
- Kelly M. Dopke
- Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA
| | - Nader El Seblani
- Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA
| | - Katherine Mercer
- Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA
| | - Sunil Naik
- Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA
| | - Gayatra Mainali
- Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA
| | - Dustin Paul
- Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA
- Dustin Paul, DO, Penn State Health, Pediatric Neurology, Pediatric Neuromuscular Medicine, 30 Hope Drive, Suite 1300, Hershey, PA 17033, USA.
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Ota Y, Srinivasan A, Capizzano AA, Bapuraj JR, Kim J, Kurokawa R, Baba A, Moritani T. Central Nervous System Systemic Lupus Erythematosus: Pathophysiologic, Clinical, and Imaging Features. Radiographics 2022; 42:212-232. [PMID: 34990324 DOI: 10.1148/rg.210045] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by multiple immunologic abnormalities and has the potential to involve the central nervous system (CNS). The prevalence of SLE seems to be growing, possibly because of earlier diagnosis and improved survival; however, the associated mortality is still high. The mortality is associated with disease-related risk factors such as lupus disease activity, young age, and organ damage or with antiphospholipid syndrome (APS). Neuropsychiatric SLE (NPSLE), which is caused by SLE-related CNS involvement, comprises a broad range of neurologic and psychiatric manifestations with varying severity, which can make this disease indistinguishable from other conditions that are unrelated to SLE. No unifying pathophysiology has been found in the etiology of NPSLE, suggesting that this condition has multiple contributors such as various immune effectors and the brain-intrinsic neuroimmune interfaces that are breached by the immune effectors. The postulated neuroimmune interfaces include the blood-brain barrier, blood-cerebrospinal fluid barrier, meningeal barrier, and glymphatic system. On the basis of the immunologic, pathologic, and imaging features of NPSLE, the underlying pathophysiology can be classified as vasculitis and vasculopathy, APS, demyelinating syndrome, or autoimmune antibody-mediated encephalitis. Each pathophysiology has different imaging characteristics, although the imaging and pathophysiologic features may overlap. Moreover, there are complications due to the immunocompromised status caused by SLE per se or by SLE treatment. Radiologists and clinicians should become familiar with the underlying mechanisms, radiologic findings, and complications of NPSLE, as this information may aid in the diagnosis and treatment of NPSLE. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Yoshiaki Ota
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - Ashok Srinivasan
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - Aristides A Capizzano
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - Jayapalli R Bapuraj
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - John Kim
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - Ryo Kurokawa
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - Akira Baba
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
| | - Toshio Moritani
- From the Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E Medical Center Dr, UH B2, Ann Arbor, MI 48109
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Rimkus CM, Schoeps VA, Boaventura M, Godoy LF, Apostolos-Pereira SL, Calich AL, Callegaro D, Lucato LT, Rovira A, Sastre-Garriga J, Leite CDC. Drug-related demyelinating syndromes: understanding risk factors, pathophysiological mechanisms and magnetic resonance imaging findings. Mult Scler Relat Disord 2021; 55:103146. [PMID: 34332456 DOI: 10.1016/j.msard.2021.103146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/22/2021] [Accepted: 07/08/2021] [Indexed: 01/08/2023]
Abstract
Some drugs and medications can precipitate immune system deregulations, which might be confused with recurrent demyelinating diseases, such as multiple sclerosis (MS) and neuromyelitis optica spectrum disorders (NMO), exacerbations of an existing disease, neoplastic lesions or other conditions. In this narrative review we describe some of the most relevant drugs and medications associated with iatrogenic demyelination. The anthelminthic agent levamisole is a frequent cocaine adulterant and can precipitate an exacerbated immune response attacking the central nervous system (CNS). High-efficacy multiple sclerosis (MS) drugs might induce a selective CNS immunosuppression, making it susceptible for opportunistic infections that course with demyelination, such as progressive multifocal leukoencephalopathy. Sometimes, the interruption of a high-efficacy drug to treat MS can induce a rapid CNS reentry of lymphocytes, exacerbating demyelinating processes and triggering rebound syndromes. Furthermore, selective cytokines inhibition, such as anti-TNFα agents, might induce an imbalance between cell death and proliferation inducing a paradoxical increase of CNS tumor necrosis factor (TNF), affecting the activity of lymphocytes, microglia and macrophages, triggering aberrant inflammation and demyelination. Immune checkpoint inhibitors are a new class of antineoplastic drugs that enhance the immune response against tumor cells by an upregulation of T-cell activity. However, this hyperactivation of the immune system might be associated with induction of unwanted autoimmune responses. In this paper we review the risk factors, the possible pathological mechanisms and the magnetic resonance imaging (MRI) findings of these drug-related demyelinating syndromes.
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Affiliation(s)
- Carolina M Rimkus
- Departamento de Radiologia e Oncologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Vinicius Andreoli Schoeps
- Departamento de Neurologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Mateus Boaventura
- Departamento de Neurologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Luis Filipe Godoy
- Departamento de Radiologia e Oncologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Samira Luisa Apostolos-Pereira
- Departamento de Neurologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | | | - Dagoberto Callegaro
- Departamento de Neurologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Leandro Tavares Lucato
- Departamento de Radiologia e Oncologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
| | - Alex Rovira
- Section of Neuroradiology, Department of Radiology, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
| | - Jaume Sastre-Garriga
- Department of Neurology/Neuroimmunology, Multiple Sclerosis Centre of Catalonia (Cemcat), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Claudia da Costa Leite
- Departamento de Radiologia e Oncologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
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Carr CM, Benson JC, DeLone DR, Diehn FE, Kim DK, Merrell KW, Nagelschneider AA, Madhavan AA, Johnson DR. Intracranial long-term complications of radiation therapy: an image-based review. Neuroradiology 2021; 63:471-482. [PMID: 33392738 DOI: 10.1007/s00234-020-02621-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/08/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Radiation therapy is commonly utilized in the majority of solid cancers and many hematologic malignancies and other disorders. While it has an undeniably major role in improving cancer survival, radiation therapy has long been recognized to have various negative effects, ranging from mild to severe. In this manuscript, we review several intracranial manifestations of therapeutic radiation, with particular attention to those that may be encountered by radiologists. METHODS We conducted an extensive literature review of known complications of intracranial radiation therapy. Based on this review, we selected complications that had salient, recognizable imaging findings. We searched our imaging database for illustrative examples of these complications, focusing only on patients who had a history of intracranial radiation therapy. We then selected cases that best exemplified expected imaging findings in these entities. RESULTS Based on our initial literature search and imaging database review, we selected cases of radiation-induced meningioma, radiation-induced glioma, cavernous malformation, enlarging perivascular spaces, leukoencephalopathy, stroke-like migraine after radiation therapy, Moyamoya syndrome, radiation necrosis, radiation-induced labyrinthitis, optic neuropathy, and retinopathy. Although retinopathy is not typically apparent on imaging, it has been included given its clinical overlap with optic neuropathy. CONCLUSIONS We describe the clinical and imaging features of selected sequelae of intracranial radiation therapy, with a focus on those most relevant to practicing radiologists. Knowledge of these complications and their imaging findings is important, because radiologists play a key role in early detection of these entities.
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Affiliation(s)
- Carrie M Carr
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - John C Benson
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - David R DeLone
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Felix E Diehn
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Dong Kun Kim
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | | | - Alex A Nagelschneider
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Ajay A Madhavan
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
| | - Derek R Johnson
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
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Ozturk K, Rykken J, McKinney AM. Pediatric Acute Toxic Leukoencephalopathy: Prediction of the Clinical Outcome by FLAIR and DWI for Various Etiologies. AJNR Am J Neuroradiol 2020; 41:1517-1524. [PMID: 32616577 DOI: 10.3174/ajnr.a6624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 04/30/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Pediatric acute toxic leukoencephalopathy is a clinicoradiologic entity comprising various etiologies. This study aimed to identify the MR imaging appearance of pediatric acute toxic leukoencephalopathy from various etiologies and determine whether the etiology correlates with clinical outcome. MATERIALS AND METHODS We retrospectively reviewed the electronic records of patients with pediatric acute toxic leukoencephalopathy younger than 19 years of age who had MR imaging within <2 weeks of presentation, including DWI and FLAIR sequences. Two neuroradiologists scored the DWI and FLAIR severity and measured the percentage ADC reduction within the visibly affected regions and normal-appearing WM. The percentage ADC reduction and DWI and FLAIR severity were correlated with clinical outcome using the Spearman correlation. RESULTS Of 22 children, 3 were excluded due to a nontoxic cause or incomplete examination. Regarding the included 19 children (mean age, 13 years), the etiologies of pediatric acute toxic leukoencephalopathy were the following: methotrexate (n = 6), bone marrow transplantation (n = 4), fludarabine (n = 3), cytarabine (n = 1), carboplatin (n = 1), vincristine (n = 1), cyclosporine (n = 1), uremia (n = 1), and bevacizumab (n = 1). Three subgroups were analyzed (chemotherapy, n = 12; immunosuppression, n = 5; others, n = 2). There was a strong correlation of FLAIR (r = 0.773, P < .001) and DWI (r = 0.851, P < .001) severity with clinical outcome, and patients treated with fludarabine had the worst outcomes. High percentage ADC reduction values were associated with adverse outcomes, and lower percentage ADC reduction values were associated with favorable outcomes (r = 0.570, P = .011). CONCLUSIONS The DWI and FLAIR severity scores appear highly prognostic, whereas percentage ADC reduction is moderately prognostic for clinical outcomes in pediatric acute toxic leukoencephalopathy. Immunosuppressive pediatric acute toxic leukoencephalopathy tends toward favorable outcomes, and fludarabine tends toward worse outcomes.
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Affiliation(s)
- K Ozturk
- From the Department of Radiology, University of Minnesota, Minneapolis, Minnesota.
| | - J Rykken
- From the Department of Radiology, University of Minnesota, Minneapolis, Minnesota
| | - A M McKinney
- From the Department of Radiology, University of Minnesota, Minneapolis, Minnesota
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Mader EC, Ramos AB, Cruz RA, Branch LA. Full Recovery From Cocaine-Induced Toxic Leukoencephalopathy: Emphasizing the Role of Neuroinflammation and Brain Edema. J Investig Med High Impact Case Rep 2020; 7:2324709619868266. [PMID: 31409155 PMCID: PMC6696843 DOI: 10.1177/2324709619868266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Toxic leukoencephalopathy (TL) is characterized by white matter disease on magnetic resonance imaging (MRI) and evidence of exposure to a neurotoxic agent. We describe a case of cocaine-induced TL in which extensive white matter disease did not preclude full recovery. A 57-year-old man with substance abuse disorder presented with a 5-day history of strange behavior. On admission, he was alert but had difficulty concentrating, psychomotor retardation, and diffuse hyperreflexia. Brain MRI revealed confluent subcortical white matter hyperintensities with restricted diffusion in some but not in other areas. Electroencephalography (EEG) showed mild diffuse slowing. Blood tests were normal except for mild hyperammonemia. Urine screen was positive for cocaine and benzodiazepine but quantitative analysis was significant only for cocaine. Prednisone 60-mg qd was initiated on day 4, tapered over a 5-day period, and discontinued on day 9. He was discharged after 3 weeks. Cognitive function returned to normal 2 weeks after discharge. Five months later, neurologic exam and EEG were normal and MRI showed near-100% resolution of white matter lesions. TL has been attributed to white matter ischemia/hypoxia resulting in demyelination/axonal injury. The clinical, EEG, and MRI findings and time course of recovery of our patient suggest that cocaine-induced inflammation/edema resulted in TL but not in ischemic/hypoxic injury. While inflammation/edema may have regressed when cocaine was discontinued, we cannot exclude a role for prednisone in protecting the patient from the ischemic/hypoxic sequelae of inflammation/edema. MRI is indispensable for diagnosing TL but EEG may provide additional useful diagnostic and prognostic information.
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Affiliation(s)
- Edward C Mader
- 1 Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Alexander B Ramos
- 1 Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Roberto A Cruz
- 1 Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Lionel A Branch
- 1 Louisiana State University Health Sciences Center, New Orleans, LA, USA
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de Oliveira AM, Paulino MV, Vieira APF, McKinney AM, da Rocha AJ, dos Santos GT, Leite CDC, Godoy LFDS, Lucato LT. Imaging Patterns of Toxic and Metabolic Brain Disorders. Radiographics 2019; 39:1672-1695. [DOI: 10.1148/rg.2019190016] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Moghaddam SM, Birbeck GL, Taylor TE, Seydel KB, Kampondeni SD, Potchen MJ. Diffusion-Weighted MR Imaging in a Prospective Cohort of Children with Cerebral Malaria Offers Insights into Pathophysiology and Prognosis. AJNR Am J Neuroradiol 2019; 40:1575-1580. [PMID: 31439630 PMCID: PMC7048462 DOI: 10.3174/ajnr.a6159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/28/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Validation of diffusion-weighted images obtained on 0.35T MR imaging in Malawi has facilitated meaningful review of previously unreported findings in cerebral malaria. Malawian children with acute cerebral malaria demonstrated restricted diffusion on brain MR imaging, including an unusual pattern of restriction isolated to the subcortical white matter. We describe the patterns of diffusion restriction in cerebral malaria and further evaluate risk factors for and outcomes associated with an isolated subcortical white matter diffusion restriction. MATERIALS AND METHODS Between 2009 and 2014, comatose Malawian children admitted to the hospital with cerebral malaria underwent admission brain MR imaging. Imaging data were compiled via NeuroInterp, a RedCap data base. Clinical information obtained included coma score, serum studies, and coma duration. Electroencephalograms were obtained between 2009 and 2011. Outcomes captured included death, neurologic sequelae, or full recovery. RESULTS One hundred ninety-four/269 (72.1%) children with cerebral malaria demonstrated at least 1 area of diffusion restriction. The most common pattern was bilateral subcortical white matter involvement (41.6%), followed by corpus callosum (37.5%), deep gray matter (36.8%), cortical gray matter (17.8%), and posterior fossa (8.9%) involvement. Sixty-one (22.7%) demonstrated isolated subcortical white matter diffusion restriction. These children had lower whole-blood lactate levels (OR, 0.9; 95% CI, 0.85-0.98), were less likely to require anticonvulsants (OR, 0.6; 95% CI, 0.30-0.98), had higher average electroencephalogram voltage (OR, 1.01; 95% CI, 1.00-1.02), were less likely to die (OR, 0.09; 95% CI, 0.01-0.67), and were more likely to recover without neurologic sequelae (OR, 3.7; 95% CI, 1.5-9.1). CONCLUSIONS Restricted diffusion is common in pediatric cerebral malaria. Isolated subcortical white matter diffusion restriction is a unique imaging pattern associated with less severe disease and a good prognosis for full recovery. The underlying pathophysiology may be related to selective white matter vulnerability.
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Affiliation(s)
- S M Moghaddam
- From the Department of Imaging Sciences (S.M.M., M.J.P.)
| | - G L Birbeck
- Department of Neurology, Department of Public Health, Center for Experimental Therapeutics (G.L.B.), University of Rochester, Rochester, New York
| | - T E Taylor
- Department of Osteopathic Medical Specialties (T.E.T., K.B.S.), Michigan State University, East Lansing, Michigan
| | - K B Seydel
- Department of Osteopathic Medical Specialties (T.E.T., K.B.S.), Michigan State University, East Lansing, Michigan
| | - S D Kampondeni
- Queen Elizabeth Central Hospital (S.D.K.), University of Malawi College of Medicine, Blantyre, Malawi
| | - M J Potchen
- From the Department of Imaging Sciences (S.M.M., M.J.P.)
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Galnares-Olalde JA, Vázquez-Mézquita AJ, Gómez-Garza G, Reyes-Vázquez D, Higuera-Ortiz V, Alegría-Loyola MA, Mendez-Dominguez A. Cytotoxic Lesions of the Corpus Callosum Caused by Thermogenic Dietary Supplements. AJNR Am J Neuroradiol 2019; 40:1304-1308. [PMID: 31272963 DOI: 10.3174/ajnr.a6116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/23/2019] [Indexed: 11/07/2022]
Abstract
Consumption of over-the-counter dietary supplements to reduce body weight is common among the population. Thermogenics are herbal combinations that claim to produce a fat-burning process through an increase in the cellular metabolic rate and greater cellular energy consumption, having a high risk for patients developing toxic leukoencephalopathy. We present a series of 6 patients with acute neurologic symptoms and MR imaging showing restricted diffusion and decreased apparent diffusion coefficient values (mean value, 400 mm2/s × 10-6) in the entire corpus callosum compatible with a cytotoxic lesion of the corpus callosum. Although patients responded favorably to the product discontinuation with rapid recovery of neurologic symptoms, there was a more prolonged resolution on imaging alterations. Because of the widespread availability and unregulated nature of thermogenic dietary supplements, physicians must be aware of the clinical and radiologic characteristics of these potential complications of their use.
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Affiliation(s)
| | | | | | | | | | - M A Alegría-Loyola
- Neurology Service (M.A.A.-L., A.M.-D.), The American British Cowdray Medical Center, Mexico City, Mexico
| | - A Mendez-Dominguez
- Neurology Service (M.A.A.-L., A.M.-D.), The American British Cowdray Medical Center, Mexico City, Mexico
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Koksel Y, Ozutemiz C, Rykken J, Ott F, Cayci Z, Oswood M, McKinney AM. "CHOICES": An acronym to aid in delineating potential causes of non-metabolic, non-infectious acute toxic leukoencephalopathy. Eur J Radiol Open 2019; 6:243-257. [PMID: 31309133 PMCID: PMC6607360 DOI: 10.1016/j.ejro.2019.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 06/16/2019] [Accepted: 06/24/2019] [Indexed: 12/18/2022] Open
Abstract
Recognition the etiologies of ATL is important due to its potentially reversible nature after treatment or removal of the toxin. “CHOICES” is useful to memorize etiologies associated with PVWM injury in non-metabolic and non-infectious ATL patients. Reduced diffusion is an early and important imaging finding to evaluate patients with non-metabolic and non-infectious ATL patients.
Purpose To describe non-metabolic, non-infectious etiologies of acute toxic leukoencephalopathy (ATL) on DWI MRI, and provide a useful acronym to remember them. Material and Methods Our PACS archive was reviewed, yielding 185 patients with suspected ATL per MRI reports and clinical follow up; infectious or metabolic causes were excluded. Result/Discussion The 87 included non-infectious, non-metabolic ATL patients' etiologies are represented by the acronym 'CHOICES': chemotherapy ('C',n = 34); heroin-induced ('H',n = 6), opioid analogues ('O',n = 14); immunosuppressant ('I',n = 11) or imidazole (n = 2); cocaine ('C',n = 1); environmental or ethanol abuse ('E',n = 5), splenial lesions ('S',n = 9), and 'other' (n = 5). Conclusion The "CHOICES" acronym delineates various toxic etiologies of ATL.
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Key Words
- ADEM, Acute disseminated encephalomyelitis
- AEDs, Anti-epileptic drugs
- AHE, Acute Hepatic/Hyperammonemic Encephalopathy
- AHL, Acute hemorrhagic leukoencephalitis
- ATL, Acute toxic leukoencephalopathy
- Acute toxic leukoencephalopathy
- CO, Carbon monoxide
- Diffusion-Weighted imaging
- EPM, Extrapontine myelinolysis
- EtOH, Ethanol
- HIE, Hypoxic-ischemic encephalopathy
- LE, leukoencephalopathy
- MBD, Marchiafava-Bignami Disease
- MERS, Mild encephalitis/encephalopathy with reversible splenial lesion
- NAWM, Normal-appearing white matter
- ODS, Osmotic demyelination syndrome
- PML, Progressive multifocal leukoencephalopathy
- PRES, Posterior reversible encephalopathy syndrome
- PVWM, Periventricular white matter
- Periventricular white matter
- RIS, Radiology information system
- RSL, Reversible splenial lesions
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Affiliation(s)
- Yasemin Koksel
- Department of Radiology, Division of Neuroradiology, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - Can Ozutemiz
- Department of Radiology, Division of Neuroradiology, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - Jeffrey Rykken
- Department of Radiology, Division of Neuroradiology, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - Frederick Ott
- Department of Radiology, Division of Neuroradiology, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - Zuzan Cayci
- Department of Radiology, Division of Neuroradiology, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - Mark Oswood
- Department of Radiology, Division of Neuroradiology Hennepin Healthcare Medical Center, Minneapolis, MN, USA
| | - Alexander M McKinney
- Department of Radiology, Division of Neuroradiology, University of Minnesota Medical Center, Minneapolis, MN, USA
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Özütemiz C, Roshan SK, Kroll NJ, Benson JC, Rykken JB, Oswood MC, Zhang L, McKinney AM. Acute Toxic Leukoencephalopathy: Etiologies, Imaging Findings, and Outcomes in 101 Patients. AJNR Am J Neuroradiol 2019; 40:267-275. [PMID: 30679224 DOI: 10.3174/ajnr.a5947] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 12/03/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Prior studies regarding acute toxic leukoencephalopathy (ATL) are either small, or preliminary. Our aim was to evaluate etiologies of and differences in imaging severity and outcomes among various etiologies of ATL. MATERIALS AND METHODS MRIs of patients with suspected ATL over 15 years were retrospectively reviewed; inclusion criteria were: MRI <3 weeks of presentation with both DWI and FLAIR. These were jointly graded by two neuroradiologists via a previously described score of severity. Clinical outcome was evaluated via both modified Rankin (mRS) and ATL outcome (ATLOS) scores, each being correlated with the DWI and FLAIR scores. Etiologic subgroups of n > 6 patients were statistically compared. RESULTS Of 101 included patients, the 4 subgroups of n > 6 were the following: chemotherapy (n = 35), opiates (n = 19), acute hepatic encephalopathy (n = 14), and immunosuppressants (n = 11). Other causes (n = 22 total) notably included carbon monoxide (n = 3) metronidazole (n = 2), and uremia (n = 1). The mean DWI/FLAIR severity scores were 2.6/2.3, 3.3/3.3, 2.1/2.1 and 2.0/2.5 for chemotherapeutics, opiates, AHE and immunosuppressants, respectively, with significant differences in both imaging severity and outcome (P = .003-.032) among subgroups, particularly immunosuppressant versus chemotherapy-related ATL and immunosuppressants versus opiates (P = .004-.032) related ATL. DWI and FLAIR severity weakly correlated with outcome (ρ = 0.289-.349, P < .005) but correlated stronger in the chemotherapy (ρ = 0.460-.586, P < .010) and opiate (ρ =.472-.608, P < .05) subgroups, which had the worst outcomes. ATL clinically resolved in 36%, with severe outcomes in 23% (coma or death, 9/16 deaths from fludarabine). Notable laboratory results were elevated CSF myelin basic protein levels in 8/9 patients and serum blood urea nitrogen levels in 24/91. CONCLUSIONS Clinical outcomes of ATL vary on the basis of etiology, being worse in chemotherapeutic- and opiate-related ATL. Uremia may be a predisposing or exacerbating factor.
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Affiliation(s)
- C Özütemiz
- From the Department of Radiology (C.Ö., S.K.R., J.C.B., J.B.R., A.M.M.)
| | - S K Roshan
- From the Department of Radiology (C.Ö., S.K.R., J.C.B., J.B.R., A.M.M.)
| | - N J Kroll
- Faculty of Medicine (N.J.K.), University of Minnesota, Minneapolis, Minnesota
| | - J C Benson
- From the Department of Radiology (C.Ö., S.K.R., J.C.B., J.B.R., A.M.M.)
| | - J B Rykken
- From the Department of Radiology (C.Ö., S.K.R., J.C.B., J.B.R., A.M.M.)
| | - M C Oswood
- Department of Radiology (M.C.O.), Hennepin County Medical Center, Minneapolis, Minnesota
| | - L Zhang
- Biostatistics Design and Analysis Center (L.Z.), Clinical and Translational Science Institute, University of Minnesota, Minneapolis, Minnesota
| | - A M McKinney
- From the Department of Radiology (C.Ö., S.K.R., J.C.B., J.B.R., A.M.M.)
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14
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Radiological Findings of Drug-Induced Neurotoxic Disorders. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-68536-6_67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Radiological Findings of Drug-Induced Neurotoxic Disorders. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-61423-6_67-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Özütemiz C, Roshan SK, Kroll NJ, Rykken JB, Ott F, McKinney AM. Concomitant Acute Toxic Leukoencephalopathy and Posterior Reversible Encephalopathy Syndrome. J Neuroimaging 2018; 28:535-541. [PMID: 29797465 DOI: 10.1111/jon.12526] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND AND PURPOSE Posterior reversible encephalopathy syndrome (PRES) and acute toxic leukoencephalopathy (ATL) are both potentially reversible clinicoradiologic entities. Although their magnetic resonance imaging (MRI) findings differ, rarely both may occur simultaneously in acutely encephalopathic patients. Our aim was to determine the incidence and causes of concomitant "ATL-PRES." METHODS Retrospective search of suspected acutely encephalopathic adults since 1998 throughout our picture archiving and communication system revealed 167 patients with PRES and 106 patients with ATL. Images of these patients were retrospectively evaluated by two neuroradiologists and a fellow to identify the cases which carry both features of PRES and ATL. Imaging findings were scored based on previously reported scoring system as mild, moderate, and severe. The clinical outcome of the patients was determined according to the modified Rankin scale. RESULTS Our search revealed a series of 6 patients (%2.2) in 273 patients who presented acutely with either encephalopathy or seizures, caused by various etiologies, including immunosuppression following transplantation (n = 2), hypertensive crisis (n = 2), chemotherapy (n = 1), and sepsis (n = 1). MRI demonstrated findings consistent with both PRES and ATL simultaneously on FLAIR and diffusion weighted imaging. Severity of imaging findings of concomitant "ATL-PRES" was concordant with each other (rho ≈ 1.0, P < .00001), and each patient eventually returned to clinical baseline. This finding, along with their similar etiologies, raises the possibility of an underlying common pathophysiologic thread, perhaps being endothelial toxicity. CONCLUSIONS Concomitant "ATL-PRES" was found in 2.2% of the patients in a large cohort of ATL and PRES. Etiologies varied. Clinical symptoms and MRI findings were potentially reversible.
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Affiliation(s)
- Can Özütemiz
- Department of Radiology, University of Minnesota, Minneapolis, MN
| | | | | | - Jeffrey B Rykken
- Department of Radiology, University of Minnesota, Minneapolis, MN
| | - Frederick Ott
- Department of Radiology, University of Minnesota, Minneapolis, MN
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17
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Sarbu N, Shih RY, Jones RV, Horkayne-Szakaly I, Oleaga L, Smirniotopoulos JG. White Matter Diseases with Radiologic-Pathologic Correlation. Radiographics 2017; 36:1426-47. [PMID: 27618323 DOI: 10.1148/rg.2016160031] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
White matter diseases include a wide spectrum of disorders that have in common impairment of normal myelination, either by secondary destruction of previously myelinated structures (demyelinating processes) or by primary abnormalities of myelin formation (dysmyelinating processes). The pathogenesis of many white matter diseases remains poorly understood. Demyelinating disorders are the object of this review and will be further divided into autoimmune, infectious, vascular, and toxic-metabolic processes. Autoimmune processes include multiple sclerosis and related diseases: tumefactive demyelinating lesions, Balo concentric sclerosis, Marburg and Schilder variants, neuromyelitis optica (Devic disease), acute disseminated encephalomyelitis, and acute hemorrhagic leukoencephalopathy (Hurst disease). Infectious processes include Lyme disease (neuroborreliosis), progressive multifocal leukoencephalopathy, and human immunodeficiency virus (HIV) encephalopathy. Vascular processes include different types of small-vessel disease: arteriolosclerosis, cerebral amyloid angiopathy, cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), primary angiitis of the central nervous system, Susac syndrome, and neurolupus. Toxic-metabolic processes include osmotic myelinolysis, methotrexate leukoencephalopathy, and posterior reversible encephalopathy syndrome. The imaging spectrum can vary widely from small multifocal white matter lesions to confluent or extensive white matter involvement. Understanding the pathologic substrate is fundamental for understanding the radiologic manifestations, and a systematic approach to the radiologic findings, in correlation with clinical and laboratory data, is crucial for narrowing the differential diagnosis. (©)RSNA, 2016.
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Affiliation(s)
- Nicolae Sarbu
- From the Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain (N.S., L.O.); and American Institute for Radiologic Pathology, Silver Spring, Md (R.Y.S., R.V.J., I.H.S., J.G.S.)
| | - Robert Y Shih
- From the Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain (N.S., L.O.); and American Institute for Radiologic Pathology, Silver Spring, Md (R.Y.S., R.V.J., I.H.S., J.G.S.)
| | - Robert V Jones
- From the Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain (N.S., L.O.); and American Institute for Radiologic Pathology, Silver Spring, Md (R.Y.S., R.V.J., I.H.S., J.G.S.)
| | - Iren Horkayne-Szakaly
- From the Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain (N.S., L.O.); and American Institute for Radiologic Pathology, Silver Spring, Md (R.Y.S., R.V.J., I.H.S., J.G.S.)
| | - Laura Oleaga
- From the Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain (N.S., L.O.); and American Institute for Radiologic Pathology, Silver Spring, Md (R.Y.S., R.V.J., I.H.S., J.G.S.)
| | - James G Smirniotopoulos
- From the Department of Radiology, Hospital Clínic Barcelona, Barcelona, Spain (N.S., L.O.); and American Institute for Radiologic Pathology, Silver Spring, Md (R.Y.S., R.V.J., I.H.S., J.G.S.)
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18
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Villanueva-Meyer JE, Mabray MC, Cha S. Current Clinical Brain Tumor Imaging. Neurosurgery 2017; 81:397-415. [PMID: 28486641 PMCID: PMC5581219 DOI: 10.1093/neuros/nyx103] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 02/23/2017] [Indexed: 01/12/2023] Open
Abstract
Neuroimaging plays an ever evolving role in the diagnosis, treatment planning, and post-therapy assessment of brain tumors. This review provides an overview of current magnetic resonance imaging (MRI) methods routinely employed in the care of the brain tumor patient. Specifically, we focus on advanced techniques including diffusion, perfusion, spectroscopy, tractography, and functional MRI as they pertain to noninvasive characterization of brain tumors and pretreatment evaluation. The utility of both structural and physiological MRI in the post-therapeutic brain evaluation is also reviewed with special attention to the challenges presented by pseudoprogression and pseudoresponse.
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Affiliation(s)
- Javier E. Villanueva-Meyer
- Department of Radiology and Biomedical Imaging, Neuroradiology Section, University of California San Francisco, San Francisco, California
| | - Marc C. Mabray
- Department of Radiology and Biomedical Imaging, Neuroradiology Section, University of California San Francisco, San Francisco, California
| | - Soonmee Cha
- Department of Radiology and Biomedical Imaging, Neuroradiology Section, University of California San Francisco, San Francisco, California
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19
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Escamilla-Ocañas CE, Cámara-Lemarroy CR, Cantú-Martinez L, Martínez HR. Acute toxic leukoencephalopathy associated with a non-prescription weight loss supplement: a report of two cases. Neurol Sci 2017; 38:2199-2201. [PMID: 28656377 DOI: 10.1007/s10072-017-3028-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/10/2017] [Indexed: 10/19/2022]
Abstract
Weight loss dietary supplements are used with some frequency by an increasingly overweight population. Some products are not adequately regulated and may pose potential health risks. We report two new cases of acute toxic leukoencephalopathy (ATL) due to the use of a supplement marketed as a thermogenic weight loss aid. ATL is a heterogeneous clinic-radiological entity that has been associated with various compounds, such as chemotherapeutic drugs and immunomodulators. It is characterized by an often reversible periventricular and infratentorial demyelination. The commercialization of non-regulated weight loss products continues to be a health risk in our population.
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Affiliation(s)
- Cesar E Escamilla-Ocañas
- Instituto de Neurología y Neurocirugía, Centro Medico Zambrano Hellion, Tecnológico de Monterrey, Ave Batallón de San Patricio # 112, Colonia Real de San Agustín, 66278, San Pedro Garza García, N.L., Mexico
| | - Carlos R Cámara-Lemarroy
- Instituto de Neurología y Neurocirugía, Centro Medico Zambrano Hellion, Tecnológico de Monterrey, Ave Batallón de San Patricio # 112, Colonia Real de San Agustín, 66278, San Pedro Garza García, N.L., Mexico.,Servicio de Neurología, Hospital Universitario UANL, Monterrey, Mexico
| | - Leonel Cantú-Martinez
- Instituto de Neurología y Neurocirugía, Centro Medico Zambrano Hellion, Tecnológico de Monterrey, Ave Batallón de San Patricio # 112, Colonia Real de San Agustín, 66278, San Pedro Garza García, N.L., Mexico
| | - Héctor R Martínez
- Instituto de Neurología y Neurocirugía, Centro Medico Zambrano Hellion, Tecnológico de Monterrey, Ave Batallón de San Patricio # 112, Colonia Real de San Agustín, 66278, San Pedro Garza García, N.L., Mexico. .,Servicio de Neurología, Hospital Universitario UANL, Monterrey, Mexico.
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20
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Kontzialis M, Soares BP, Huisman TA. Lesions in the Splenium of the Corpus Callosum on MRI in Children: A Review. J Neuroimaging 2017; 27:549-561. [DOI: 10.1111/jon.12455] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 05/31/2017] [Accepted: 06/02/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
- Marinos Kontzialis
- Section of Neuroradiology, Department of Radiology; Rush University Medical Center; Chicago IL
| | - Bruno P. Soares
- Pediatric Radiology, Russell H Morgan Department of Radiology and Radiological Science; The Johns Hopkins University School of Medicine; Baltimore MD
| | - Thierry A.G.M. Huisman
- Pediatric Radiology, Russell H Morgan Department of Radiology and Radiological Science; The Johns Hopkins University School of Medicine; Baltimore MD
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21
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Terada M, Nakamagoe K, Obara N, Ogawa S, Sakamoto N, Sato T, Nohara S, Chiba S, Tamaoka A. Chronic Graft-versus-host Disease Presenting with Multiple Punctate Intracranial Lesions on Contrast-enhanced Magnetic Resonance Imaging. Intern Med 2017; 56:363-368. [PMID: 28154284 PMCID: PMC5348464 DOI: 10.2169/internalmedicine.56.7329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Central nervous system graft-versus-host disease can present quite a diagnostic challenge. We herein present a case of histologically-confirmed chronic graft versus host disease (GVHD) involving the central nervous system that occurred at 19 months after peripheral blood stem cell transplantation. Cranial magnetic resonance imaging showed areas of confluent hyperintensity in the deep/subcortical white matter with multiple punctate and curvilinear gadolinium enhancements, suggesting the disruption of the blood-brain barrier. A brain biopsy revealed perivascular CD3-positive T cell infiltration around the small vessels. We propose that the detection of punctate-enhanced lesions by magnetic resonance imaging may be a useful finding that facilitates the early diagnosis of chronic GVHD involving the central nervous system.
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Affiliation(s)
- Makoto Terada
- Department of Neurology, Faculty of Medicine, University of Tsukuba, Japan
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22
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Abstract
OPINION STATEMENT While the diagnosis of migraine in children is generally straightforward, treatment can seem complex with a number of medication choices, many of which are used "off label." Patients with intermittent migraines can often be managed with ibuprofen or naproxen taken as needed. Unfortunately, by the time that children present to our practice, they have often tried these medications without improvement. Triptans are frequently prescribed to these patients with good success. It is important to make the patient aware of the possible associated serotonergic reactions. If the patient is having more than one headache per week or the headaches are prolonged, prophylactic treatment is indicated. In our practice, the overwhelming majority of these patients will be treated with amitriptyline or topiramate. We generally allow side effect tolerability to guide our choice of medication. Cyproheptadine is often used in younger patients as it comes in a liquid form. There is evidence supporting the use of propranolol, though the potential worsening of underlying asthma symptoms may limit its use, and sodium valproate, which must be used with caution in female patients of childbearing age due to significant teratogenicity risks. Other prophylactic treatments with less robust evidence include the antiepileptic drugs gabapentin, zonisamide, and levetiracetam; calcium channel blockers such as verapamil and amlodipine; and the angiotensin receptor blocking agent candasartin (not available in the USA). Almost all patients in our practice are advised to take magnesium supplementation. Magnesium is a supplement with relatively few adverse effects and good evidence for improvement of migraine symptoms. We evaluate lifestyle issues and comorbidities in all our patients. Ignoring these will make successful treatment near impossible. Good sleep, adequate hydration, appropriate diet, and exercise are vitally important. Finally, most of our patients benefit from a psychology evaluation with cognitive behavioral therapy. Stress management and biofeedback are tremendously helpful in improving quality of life in migraineurs.
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Affiliation(s)
- Kelsey Merison
- Division of Child Neurology, Nationwide Children's Hospital, Columbus, OH, USA
| | - Howard Jacobs
- Division of Child Neurology, Ohio State University, Nationwide Children's Hospital, FB, Suite 4A.4-4814, 700 Children's Drive, Columbus, OH, 43205, USA.
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23
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Reversible Splenial Lesion Related to Acute Lithium Intoxication in a Bipolar Patient: A Case Report. J Clin Psychopharmacol 2016; 36:528-9. [PMID: 27482969 DOI: 10.1097/jcp.0000000000000544] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
PURPOSE OF REVIEW Survival of brain tumor patients has increased with improvements in cancer treatments. However, treatments like radiotherapy can be neurotoxic and thus new end-points in clinical trials, as well as in individual management, have appeared. This article reviews the cognitive outcomes after radiotherapy in brain tumor patients, focusing on radiation-induced impairments, and then discusses actual cognitive assessment limitations. RECENT FINDINGS Although physiopathology of radiation-induced cognitive impairments remains elusive, a general course can be described as acute, early-delayed, and late-delayed effects corresponding to different processes. The last is of high interest because the related impairments are irreversible. In this context, a cognitive assessment should be performed as often as possible, but actual tools are unfortunately not developed. Nevertheless, with respect to neuro-oncologic specificities, new cognitive tools could be developed to overcome these limitations. SUMMARY Improvements in neuropsychologic assessment for brain tumor patients are urgently needed. A dynamic vision of radiation-induced cognitive impairments appears inevitable and should lead to a change in actual considerations about neurotoxicity follow-up.
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Vivas LLY, Gold WL, Mandell DM, Wu PE. An 82-year-old man with ataxia and dysarthria. CMAJ 2015; 188:1251-1254. [PMID: 26464138 DOI: 10.1503/cmaj.150573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Lilian L Y Vivas
- Department of Medicine (Vivas, Gold, Wu), Division of Physical Medicine and Rehabilitation (Vivas), University of Toronto; Division of Infectious Diseases (Gold), University Health Network; Department of Medical Imaging (Mandell), University of Toronto; Division of Neuroradiology (Mandell), University Health Network; Division of Clinical Pharmacology and Toxicology (Wu), University of Toronto, Toronto, Ont
| | - Wayne L Gold
- Department of Medicine (Vivas, Gold, Wu), Division of Physical Medicine and Rehabilitation (Vivas), University of Toronto; Division of Infectious Diseases (Gold), University Health Network; Department of Medical Imaging (Mandell), University of Toronto; Division of Neuroradiology (Mandell), University Health Network; Division of Clinical Pharmacology and Toxicology (Wu), University of Toronto, Toronto, Ont
| | - Daniel M Mandell
- Department of Medicine (Vivas, Gold, Wu), Division of Physical Medicine and Rehabilitation (Vivas), University of Toronto; Division of Infectious Diseases (Gold), University Health Network; Department of Medical Imaging (Mandell), University of Toronto; Division of Neuroradiology (Mandell), University Health Network; Division of Clinical Pharmacology and Toxicology (Wu), University of Toronto, Toronto, Ont
| | - Peter E Wu
- Department of Medicine (Vivas, Gold, Wu), Division of Physical Medicine and Rehabilitation (Vivas), University of Toronto; Division of Infectious Diseases (Gold), University Health Network; Department of Medical Imaging (Mandell), University of Toronto; Division of Neuroradiology (Mandell), University Health Network; Division of Clinical Pharmacology and Toxicology (Wu), University of Toronto, Toronto, Ont.
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26
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Khanipour Roshan S, Salmela MB, McKinney AM. Susceptibility-weighted imaging in stroke-like migraine attacks after radiation therapy syndrome. Neuroradiology 2015; 57:1103-9. [PMID: 26242361 DOI: 10.1007/s00234-015-1567-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 07/14/2015] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Stroke-like migraine attacks after radiation therapy (SMART) syndrome has a characteristic clinical presentation and postcontrast T1WI MRI appearance. Susceptibility-weighted imaging (SWI) may help distinguish SMART from other disorders that may have a similar postcontrast MRI appearance. METHODS The MRI examinations of four patients with SMART syndrome are described herein, each of which included SWI, FLAIR, DWI, and postcontrast T1WI on the presenting and follow-up MRI examinations. RESULTS In each, the initial SWI MRI demonstrated numerous susceptibility hypointensities <5 mm in size throughout the cerebrum, particularly within the periventricular white matter (PVWM), presumably related to radiation-induced cavernous hemangiomas (RICHs). By follow-up MRI, each postcontrast examination had demonstrated resolution of the gyriform enhancement on T1WI, without susceptibility hypointensities on SWI within those previously enhancing regions. CONCLUSION These preliminary findings suggest that SWI may help identify SMART syndrome or at least help discriminate it from other disorders, by the findings of numerous susceptibility hypointensities on SWI likely representing RICHs, gyriform enhancement on T1WI, and postsurgical findings or appropriate clinical history.
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Affiliation(s)
- Sara Khanipour Roshan
- Department of Radiology, Division of Neuroradiology, University Of Minnesota, 420 Delaware St. SE, B-226 Mayo Memorial Building, Minneapolis, MN, 55455, USA.
| | - Michael B Salmela
- Department of Radiology, Division of Neuroradiology, University Of Minnesota, 420 Delaware St. SE, B-226 Mayo Memorial Building, Minneapolis, MN, 55455, USA
| | - Alexander M McKinney
- Department of Radiology, Division of Neuroradiology, University Of Minnesota, 420 Delaware St. SE, B-226 Mayo Memorial Building, Minneapolis, MN, 55455, USA
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Meyer-Ohlendorf M, Braczynski A, Al-Qaisi O, Gessler F, Biskup S, Weise L, Steinbach JP, Wagner M, Mittelbronn M, Bähr O. Comprehensive diagnostics in a case of hereditary diffuse leukodystrophy with spheroids. BMC Neurol 2015; 15:103. [PMID: 26141177 PMCID: PMC4491230 DOI: 10.1186/s12883-015-0368-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 06/30/2015] [Indexed: 11/20/2022] Open
Abstract
Background Hereditary diffuse leukodystrophy with spheroids is a rare type of leukoencephalopathy. Mutations in the colony stimulating factor 1 receptor have recently been identified to be the cause of this microgliopathy. Clinical and radiological presentation can often misguide physicians during the diagnosis of patients with this underdiagnosed disease. Case presentation We present a 29 year-old woman with a rapid course of hereditary diffuse leukodystrophy with spheroids. She mainly showed cognitive impairment and severe motor dysfunctions. Her MRI showed spotted and confluent hyperintensities of the white matter on T2-weighted images involving the corticospinal tract as well as the corpus callosum. Further, those lesions showed striking restricted diffusion. As this restricted diffusion in all areas showing signs of leukoencephalopathy was so impressive we searched Medline for these terms and got hereditary diffuse leukodystrophy with spheroids as one of the first results. After a comprehensive diagnostic workup and exclusion of other leukoencephalopathies, stereotactic biopsy and genetic testing confirmed the diagnosis. Conclusion This case points out at two important features of hereditary diffuse leukodystrophy with spheroids being spotted and/or confluent leukoencephalopathy with areas of restricted diffusion. This might help to identify more patients with this underdiagnosed disease. Moreover, the rapid clinical course in our patient raises the question whether the relatively pronounced areas of restricted diffusion are indicative of a more acute progression of the disease.
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Affiliation(s)
| | - Anne Braczynski
- Edinger Institute (Institute of Neurology), Goethe University Hospital, Frankfurt, Germany.
| | - Omar Al-Qaisi
- Institute of Neuroradiology, Goethe University Hospital, Frankfurt, Germany.
| | - Florian Gessler
- Department of Neurosurgery, Goethe University Hospital, Frankfurt, Germany.
| | - Saskia Biskup
- CeGaT GmbH, Tübingen, Germany. .,Hertie Institute for Clinical Brain Research, Tübingen, Germany.
| | - Lutz Weise
- Department of Neurosurgery, Goethe University Hospital, Frankfurt, Germany.
| | - Joachim P Steinbach
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt, Germany.
| | - Marlies Wagner
- Institute of Neuroradiology, Goethe University Hospital, Frankfurt, Germany.
| | - Michel Mittelbronn
- Edinger Institute (Institute of Neurology), Goethe University Hospital, Frankfurt, Germany.
| | - Oliver Bähr
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt, Germany.
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