Active bleeding due to Dieulafoy´s Lesion The retroflexed image shows an ulcer with a large vessel in the proximal body, Approximately 75% to 95% of Dieulafoy lesions are found within 6 cm of the gastroesophageal junction, predominantly on the lesser curve. The blood supply to that portion of the stomach is from a large submucosal artery arising directly from the left gastric artery. Lesions of similar morphological and histological features have been found in the distal esophagus, the duodenal bulb the jejunum the colon and the rectum.
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