Abstract

Angiodysplasia is probably responsible for 2.6-6.2% of cases involving of lower gastrointestinal bleeding and 1.2-8.0% of cases involving hemorrhages from the upper GI tract. Small bowel neoplasia is rare, accounting for about 5% of gastrointestinal tumors overall and 2-3% of all malignacies. The third most common malignany of the small bowel is the sarcoma, of which the leiomyosarcoma is the most frequent. A 54-year-old male patient was admitted with the chief complaints of dizziness and headache during 2 months. Laboratory findings revealed iron deficiency anemia. A superior mesenteric arteriography found an intensive vascular stained mass in the hepatic flexure. A celiac artery angiography discovered a irregulary vascular stained lesion in the Ll vertebral level. A colonoscopy located a 10 mm sized angiodysplasia in the right colon. According to these findings, we presumed that these lesions are a colonic angiodysplasia and a suspicious duodenal lesion. The operation was perfomed. The final diagnosis was a colonic angiodysplasia combined with leiomyosarcoma of the duodenum. The rarity of this case is emphasized and the literative reviewed. (Korean J Gastrointest Endosc 18: 403-407, 1998)

• Keywords: Angiodysplasia, Leiomyosarcoma , Gastrointestinal bleeding