Spontaneous rupture of colic-artery aneurysms: report of two cases.

Two cases of spontaneous rupture of colicartery aneurysms are presented, one involving the left colic artery and the other the right colic artery, and the literature on abdominal apoplexy and visceral arterial aneurysms is reviewed. In view of the potential for life-threatening hemorrhage, it is urged that, whenever feasible, visceral arterial aneurysms be resected prophylactically when discovered by angiography or at celiotomy.