Aneurysmal bone cyst involving the hand: a review and report of two cases.

Two cases of aneurysmal bone cyst occurred in the hand. One involved the distal phalanx and followed a crushing injury to the tip of the finger; amputation of the part resulted in cure. The other involved almost all of the first metacarpal and was resected and replaced by an iliac bone graft. The appearance of an aneurysmal bone cyst in roentgenograms and after angiography usually is not diagnostic, although benign, progressive growth and potential for recurrence require complete removal.