Duodenal diverticula are first reported by Chomel in 1710. Duodenal diverticula are relatively common in adults with a prevalence of 23% in ERCP. The most duodenal diverticulum is asymptomatic. Complications such as obstruction, cholangitis,
biliary
stones, ulceration, perforation and hemorrhage can occur in approximately 10%. However, relatively few cases of bleeding from a duodenal diverticulum have been reported. The cause of bleeding from a duodenal diverticulum is uncertain and various
suspected etiologies were suggested, such as ectopic gastric mucosa, stasis-induced ulceration, erosion into major vessels, aortoenteric fistulas, intradiverticular polyp, aspirin-induced erosion. We report a case of a bleeding duodenal
diverticulum by
a Dieulafoy-like lesion and suggest this lesion as one of possible causes of bleeding in duodenal diverticulum.
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