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Devic's disease: Diagnostic and therapeutic challenge

Results: Ten cases (8 female, 2 male) were identified as meeting the clinical and radiologic diagnostic criteria for DD. Mean age of onset was 35 years (range 13-60) and mean disease duration 10 yrs (range 1-28 yrs) at the time of the review. The mean follow-up was 4 years (range 1-8). The initial clinical presentation was unilateral optic neuritis (4), myelopathy (5) and both (1). The mean relapse rate for the last 2 years was