- A dictionary of medical eponyms

Dieulafoy's lesion

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A rare cause of recurrent gastrointestinal bleeding, arising from a submucosal artery that runs aberrantly close to the intestinal mucosa. Although they can occur throughout the GI tract, the most common site is just below the esophageal-gastric junction. Unlike gastric ulcers, Dieulafoy lesions by definition have no surrounding mucosal defect.

We thank David G. Perdue, MD, for information submitted. David G. Perdue is Associate professor of Gastroenterology at the University of Minnesota.

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