内脏动脉瘤系腹主动脉所属各内脏及其分支所产生的动脉瘤，病因尚不清楚。目前报道近３０００例，其中国内１１０多例，中山医院报道 ６３例，其发病率占动脉瘤的 ０ ．２％，依次为脾动脉瘤６０％，肝动脉瘤２０％，肾动脉瘤１０％，肠系膜上动脉瘤５．５％，腹腔干主动脉瘤４ The visceral aneurysm is the aneurysm produced by the viscera and its branches belonging to the abdominal aorta. The etiology of the visceral aneurysms is unclear. Currently reported nearly 3000 cases, of which more than 110 cases in China, Zhongshan Hospital reported 63 cases, the incidence of aneurysms accounted for 0%. 2%, followed by 60% of splenic aneurysms, 20% of hepatic aneurysms, 10% of renal aneurysms, 5.5% of superior mesenteric artery aneurysms, 4 of celiac trunk aneurysms