Management of rare mesenteric arterial branch aneurysms.

Mesenteric arterial branch aneurysms are rare. This study reports the Mayo Clinic experience from 1980 to 1998. We reviewed the medical records of 306 patients with visceral artery aneurysms evaluated at all three Mayo Clinic campuses from 1980 to 1998. In this group, we discovered 12 (3.9%) patients with 14 aneurysms of the mesenteric branch arteries. In our small experience, colic aneurysms were more likely to rupture and therefore should be considered for intervention in patients with a reasonable operative risk.