Accessory palmaris longus muscle causing ulnar nerve compression at the wrist
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P J Regan1, L Feldberg, B N Bailey
1Department of Plastic and Reconstructive Surgery, Stoke Mandeville Hospital, Buckinghamshire, England.
The Journal of Hand Surgery
|July 1, 1991
Abstract:
An accessory palmaris muscle that arose from the base of the fifth metacarpal passed proximally and inserted into the palmaris longus tendon. In its course it compressed the ulnar nerve and vessels. It was detached proximally and folded on itself to provide hypothenar bulk. The entrapment symptoms were relieved.