title: Anomalous muscle causing ulnar nerve compression at Guyon's canal.
abstract: We report a rare anatomical variation of an anomalous supernumerary muscle in a male cadaver. It was crossing Guyon's canal, superficial to the ulnar nerve and ulnar artery, and inserted into the aponeurosis of the little finger. This muscle could potentially cause entrapment of the ulnar nerve in Guyon's canal.
authors: Department of Anatomy, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece. g_paraskevas@yahoo.gr
authors: Georgios K
authors: GK
authors: Paraskevas
authors: Orestis
authors: O
authors: Ioannidis
authors: Dimitrios S
authors: DS
authors: Economou
mesh_terms: D002102:Cadaver; D006801:Humans; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000002:abnormalities*; D017769:Ulnar Nerve Compression Syndromes / Q000209:etiology*