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Article
February 1992

Hereditary Motor and Sensory Neuropathy With Treatable Extrapyramidal Features

Author Affiliations

From the Department of Neurology, Medical College of Wisconsin, Milwaukee (Dr Jaradeh), and the Peripheral Nerve Center, Mayo Clinic, Rochester, Minn (Dr Dyck).

Arch Neurol. 1992;49(2):175-178. doi:10.1001/archneur.1992.00530260077024
Abstract

• Seven patients with a sensorimotor peripheral neuropathy followed years later by extrapyramidal manifestations are presented. This appears to be a separate genetic disorder(s) from that described as MachadoJoseph disease. In five subjects, other relatives had similar multisystem involvement. None was of known Portuguese ancestry. The extrapyramidal syndrome was mainly parkinsonian. Pain was prominent in five subjects. In all cases, low or moderate doses of levodopa/carbidopa ameliorated both the pain and the parkinsonian features. In one patient, a randomized placebo-controlled trial of levodopa/carbidopa was found to significantly improve most symptoms and neurologic dysfunction scores related to the extrapyramidal syndrome.

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