Presentation and management of rare saccular superior mesenteric artery trunk and branch aneurysms

Superior mesenteric artery (SMA) aneurysm is caused by degeneration of the visceral arteries. Although a rarely encountered entity, it requires timely management owing to the high mortality rate associated with rupture, particularly when the aneurysm is saccular in nature. As such, urgent treatment is generally indicated. We present five cases of SMA aneurysm arising from the main trunk or branches of the SMA. (J Vasc Surg Cases and Innovative Techniques 2022;8:281-6.)