Atypical Demyelinating Disorders: MR Imaging Features,

Neuroimaging Clin. N. Am. · Aug 2024

Review

Atypical Demyelinating Disorders: MR Imaging Features, Atypical Triggers, and Etiopathogenesis.

Atypical demyelinating lesions (ADLs) can be idiopathic, occurring as isolated and self-limited events, or can appear in different stages of relapsing demyelinating diseases. Not infrequently, ADLs occur in inflammatory syndromes associated with exogenous or endogenous toxic factors, metabolic imbalance, or infectious agents. It is important to recognize imaging patterns that indicate an inflammatory/demyelinating substrate in central nervous system lesions and to investigate potential triggers or complicating factors that might be associated. The prognostic and treatment strategies of ADLs are influenced by the underlying etiopathogenesis.

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- de Medeiros RimkusCarolinaCDepartment of Radiology and Oncology, Faculdade de Medicina da Universidade de São Paulo, R. Dr. Ovídio Pires de Campos, 75, Cerqueira Cesar, São Paulo-SP, 05403-010, Brazil; Instituto D'Or de Ensino e Pesquisa (IDOR), Av. Briga, Diego Cardoso Fragoso, Samira Luisa Apóstolos Pereira, and Claudia da Costa Leite.
- Department of Radiology and Oncology, Faculdade de Medicina da Universidade de São Paulo, R. Dr. Ovídio Pires de Campos, 75, Cerqueira Cesar, São Paulo-SP, 05403-010, Brazil; Instituto D'Or de Ensino e Pesquisa (IDOR), Av. Brigadeiro Luís Antônio, 5001 - Jardim Paulista, São Paulo - SP - CEP 01401-002; MS Center, Anatomy and Neurosciences, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Amsterdam UMC, Location VUmc, De Boelelaan, 1117, 1081 HV, Amsterdam, The Netherlands. Electronic address: carolina.rimkus@hc.fm.usp.br.
- Neuroimaging Clin. N. Am. 2024 Aug 1; 34 (3): 421438421-438.
AbstractAtypical demyelinating lesions (ADLs) can be idiopathic, occurring as isolated and self-limited events, or can appear in different stages of relapsing demyelinating diseases. Not infrequently, ADLs occur in inflammatory syndromes associated with exogenous or endogenous toxic factors, metabolic imbalance, or infectious agents. It is important to recognize imaging patterns that indicate an inflammatory/demyelinating substrate in central nervous system lesions and to investigate potential triggers or complicating factors that might be associated. The prognostic and treatment strategies of ADLs are influenced by the underlying etiopathogenesis.Copyright © 2024 Elsevier Inc. All rights reserved.

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Atypical Demyelinating Disorders: MR Imaging Features, Atypical Triggers, and Etiopathogenesis.

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