[Superior mesenteric arterial thrombosis complicating ulcerative colitis: A case report].

36-year-old men with ulcerative colitis was attacked by the colic. The thrombus in superior mesenteric artery was revealed by computed tomography. Because the effect of the thrombolysis under intrarterial angiography was insufficient, thrombectomy was enforced under the laparotomy in the same day. The arterial thrombosis is extremely rare in the complication of ulcerative colitis. The activity of ulcerative colitis as one of factors of the appearance of thrombus was suggested.