A Case of a Small Intestinal Arteriovenous Malformation Diagnosed by Double‐Balloon Enteroscopy Preoperatively

Abstract

Gastrointestinal bleeding that originates in the small intestine is often difficult to diagnose. Double‐balloon enteroscopy (DBE) is increasingly used for the diagnosis and/or therapy of obscure overt/occult gastrointestinal bleeding, including arteriovenous malformation (AVM). However, as AVM of the small bowel is rare and may appear on DBE as a small blueish protruding lesion or reddish patch, its diagnosis poses a challenge for clinicians. In this video, we show a case where we could identify an AVM with distinctive endoscopic appearance of a large submucosal tumor (SMT) ‐like elevated lesion as a bleeding source on preoperative DBE.

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