Differential diagnosis of multiple sclerosis and genetic cerebral white matter disorders Review article

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Marek Bodzioch

Abstract

Genetic cerebral white matter disorders are an important albeit underestimated option in the differential diagnosis of multiple sclerosis. Apparently, they are considerably more prevalent than commonly believed but often remain unrecognized or misdiagnosed as multiple sclerosis. Correct diagnosis of a genetic disorder has a significant impact on prognosis, prophylactic and therapeutic management (including disease-modifying therapies in selected cases), genetic counseling as well as carrier status determination among the family members. Effective identification of patients with an increased risk of a genetic etiology may be improved by the implementation of the proposed four mainstays of the differential diagnosis: family history, magnetic resonance imaging, clinical course, and associated abnormalities. Features suggestive of a genetic disorder (and less likely associated with multiple sclerosis) recognized in at least one of these four mainstays provide justification for further detailed testing in order to identify the specific genetic defect.

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