Robinson D, Aghasi M K, Halperin N
Department of Orthopedic Surgery, "Assaf Harofeh" Medical Center, Zeriffin, Israel.
Orthop Rev. 1989 Mar;18(3):345-7.
A case of ulnar nerve compression at the wrist caused by an accessory palmaris brevis muscle is presented. At operation, the muscle belly was excised and both Guyon's and the carpal tunnels released. The patient experienced complete relief of symptoms.