Abstract

Meckel's diverticulum is a remnant of the omphalomesenteric duct located in the ileum. Although typically asymptomatic, it may cause rectal bleeding in children. Owing to improved endoscopic techniques for the small bowel, it is increasingly also recognized as a potential bleeding site in adults. Endoscopic appearance is characterized by two lumina, a thickened bridge, ulcer, and occasionally direct visualization of ectopic gastric mucosa. This article is part of an expert video encyclopedia.

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