Concurrent colon polyp with angiodysplasia causes lower gastrointestinal bleeding: a case report.

Angiodysplasia is an important cause of gastrointestinal bleeding which occurs mostly common in the right side of the colon, usually in the elderly but sometimes in younger adults. Herein, a case of rare clinical association-adenomatous colonic polyp with submucosal angiodysplasia in a forty year old man, who had repeated intestinal bleeding, is reported. We think colon polyps inducing intestinal blood loss may be caused by unidentified angiodysplasia. The diagnosis of these lesions is very difficult, so mesenteric angiography is recommended. Although various therapeutic methods were suggested, in patients who have repeated bleeding or are chronic anemics, resection of the involved segment of the bowel is the treatment of choices.