Traumatic false aneurysm of the radial artery.

A patient was referred to the hand service for treatment of a ganglion of his left distal volar forearm. History and examination revealed the mass to be an aneurysm of the left radial artery. At surgery, a false aneurysm was resected and a vein graft interposed. This case illustrates arterial aneurysms, although uncommon, must be included in the differential diagnosis of masses about the hand and wrist.