Upper-gastrointestinal bleeding from angiodysplasia of the minor papilla.

Angiodysplasia is an often unrecognized cause of upper-gastrointestinal bleeding, most commonly found in the antrum of the stomach but also in the duodenum and rarely in the esophagus. Small-intestinal angiodysplasia is the source of gastrointestinal bleeding of obscure origin in 30-40% of cases. The diagnosis is usually made by esophagogastroduodenoscopy, push enteroscopy, or selective angiography. We report the first case of angiodysplasia of the minor papilla diagnosed by side-viewing duodenoscopy.