Detection of bleeding from angiodysplasia of the jejunum by blood pool scintigraphy.

Bleeding from angiodysplasia of the gastrointestinal tract has become widely recognized. In most patients there is a single focal lesion in the colon. Small bowel involvement is rare and usually associated with colonic lesions. There have been no reports of bleeding angiodysplasia affecting the small bowel only. We were able to detect bleeding from an isolated angiodysplasia of the jejunum and correctly localize it. Our diagnosis was greatly aided by the use of dynamic data collection and by the cinematic display of the data.