Motor Neuropathy, Peripheral, With Dysautonomia

Lisker et al. (1981) described 2 sisters with distal, slowly progressive muscular weakness and hypotrophy since childhood, and autonomic dysfunction characterized by profuse sweating, distal cyanosis related to cold, orthostatic hypotension, and esophageal achalasia. Nerve conduction velocity of several motor nerves was slow. Although no sensory abnormality was found, sural nerve biopsy showed nonspecific demyelination. No similar patients were identified in the literature.