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Clinicopathological features of MERRF
1Department of Neurology, National Saigata Hospital, Niigata, Japan.
Abstract:
Clinical features of MERRF are varied in terms of patterns and severity of symptoms at the early stage. The age of onset differs even in the same family. Occasionally, ragged-red fibers are not found upon the muscle biopsy. Pathological features in some patients are very mild in comparison with their clinical symptoms; genetic analysis is needed for diagnosis. Unique clinical features in members of three families with MERRF are reported.
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