Abstract
A 92-year-old woman was admitted to our hospital with exertional dyspnea due to anemia. Gastrointestinal bleeding was suspected. Enhanced computed tomography revealed a small lesion in the upper jejunum, which was stained at the arterial phase, and video capsule endoscopy showed bloody fluid in the same region. Double-balloon enteroscopy revealed a reddish protruding lesion of 5 mm in size with blood oozing, which was suspected of being a hemangioma. Endoscopic mucosal resection resulted in arterial hemorrhage from the cut end, but endoscopic hemostasis was successfully performed. After discharge, the patient's anemia improved and there was no evidence of gastrointestinal bleeding. Histopathological examination showed that the lesion was an arteriovenous malformation, differing from the original diagnosis, but endoscopic treatment was successful.
