[Skip to Content]
[Skip to Content Landing]
Other
September 1939

PARTIAL THENAR ATROPHYA CLINICAL ENTITY

Author Affiliations

SAN FRANCISCO

From the Department of Neurology of the Division of Medicine, University of California Medical School.

Arch NeurPsych. 1939;42(3):373-394. doi:10.1001/archneurpsyc.1939.02270210011001
Abstract

For years I have been studying a group of patients who have presented a well characterized, uniform and unchanging clinical picture. The only objective manifestation has been atrophy of the outer, radial portion of the muscles of the thenar eminence. My attention was first drawn to the problem by a patient aged 26 who presented this syndrome and whose condition was diagnosed by a neurologist as "progressive muscular atrophy." Examination of this patient and the later course of his disease proved that the disorder was not progressive muscular atrophy. My group of patients had presented diagnostic difficulties, as they were referred to the clinic with the following diagnoses: multiple sclerosis, syringomyelia, gliosis spinalis, occupational neuritis of the median nerve and neuritis of the brachial plexus.

Seven patients presented this syndrome in a clearcut form and were examined completely in the clinic or in the hospital. In addition, about 10 patients

×