Abstract
SUMMARY: Radiologically isolated syndrome refers to an entity in which white matter lesions fulfilling the criteria for multiple sclerosis occur in individuals without a history of a clinical demyelinating attack or alternative etiology. Since its introduction in 2009, the diagnostic criteria of radiologically isolated syndrome and its clinical relevance have been widely debated by neurologists and radiologists. The aim of the present study was to review the following: 1) historical evolution of radiologically isolated syndrome criteria, 2) clinical and imaging findings in adults and children with radiologically isolated syndrome, 3) imaging features of patients with radiologically isolated syndrome at high risk for conversion to MS, and 4) challenges and controversies for work-up, management, and therapeutic interventions of patients with radiologically isolated syndrome.
ABBREVIATIONS:
- CIS
- clinically isolated syndrome
- DIS
- dissemination in space
- DIT
- dissemination in time
- MAGNIMS
- Magnetic Resonance Imaging in MS
- RIS
- radiologically isolated syndrome
- RRMS
- relapsing-remitting multiple sclerosis
- CADASIL
- cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
- ADEM
- acute disseminated encephalomyelitis
- © 2020 by American Journal of Neuroradiology
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