An unusual muscle of the wrist with potential compression of the ulnar nerve

M.L. Hill; M.M. Shoja; E.G. Salter; R.S. Tubbs

Vol 65, No 2 (2006)

Case report

Submitted: 2012-02-06

Published online: 2006-03-09

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An unusual muscle of the wrist with potential compression of the ulnar nerve

M.L. Hill, M.M. Shoja, E.G. Salter, R.S. Tubbs

Folia Morphol 2006;65(2):178-180.

Vol 65, No 2 (2006)

CASE REPORTS

Submitted: 2012-02-06

Published online: 2006-03-09

Abstract

During routine cadaveric dissection of the upper extremity an unusual muscle was discovered arising from the tendon of the flexor carpi ulnaris and inserting into the muscle belly of the flexor digiti minimi. The muscle’s course was superficial to the ulnar nerve and artery in Guyon’s canal. We review the literature regarding such muscle variations and discuss the potential for compression of the ulnar nerve by such muscles.