An unusual muscle of the wrist with potential compression of the ulnar nerve
Hill, M.L.; Shoja, M.M.; Salter, E.G.; Tubbs, R.S.
Folia Morphologica 65(2): 178-180
2006
ISSN/ISBN: 0015-5659 PMID: 16773612 Document Number: 599880
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.