ANOMALOUS MEDIAN NERVE ASSOCIATED WITH PERSISTENT MEDIAN ARTERY

A right human forearm showed persistence of the median artery in combi nation with anomalies of the median nerve and of the palmar circulatio n. The median nerve formed a ring enclosing the median artery, gave of f its 3rd palmar digital branch in the forearm, and had a high palmar cutaneous nerve origin and a double thenar supply. The superficial pal mar arch was incomplete. The median artery extended into the hand, pro viding the 2nd common palmar digital artery and the artery to the radi al side of the index finger. It anastomosed with the radial artery in the 1st web space.