67 year-old woman with upper gastrointestinal bleeding, requiring repeated transfusion. LEFT: Endoscopy revealed active bleeding from focal angiodysplasia located within a diverticulum in the descending duodenum. CENTER: Lesion during water lavage. The vessel responsible for the bleeding was actually small (arrow in image at RIGHT). Bleeding was controlled using the argon plasma coagulator. There was no resumption of bleeding.
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