An arteriosclerotic aneurysm of the hand.

A 56-year-old hypertensive man had bilateral arteriosclerotic aneurysms of the hand, the aneurysm on the right having recently enlarged. Since angiography showed the radial artery of the right arm to be the only blood supply to the hand, resection of the aneurysm and primary anastomosis of the radial artery were performed. The etiology of hand aneurysms and evaluation of arterial blood supply are key factors in therapeutic decisions, since arteriosclerotic aneurysms may lack sufficient collateral blood supply to allow ligation of the artery.