Mild phenotype of Charcot-Marie-Tooth disease type 4B1.

Abstract excerpt

Charcot-Marie-Tooth type 4B1 (CMT4B1) is a rare autosomal recessive demyelinating neuropathy caused by mutation of the myotubularin-related 2 (MTMR2) gene. It is characterized by a severe early-onset motor and sensory neuropathy, and myelin outfoldings on nerve biopsy. We describe a mild phenotype of CMT4B1 in a Japanese patient. She noticed difficulty in walking as an initial symptom at age 13. Her symptoms...

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