Life-threatening Gastrointestinal Bleeding from a Dieulafoy's Lesion in the Duodenum: A Case Report.

Dieulafoy's lesion is a rare cause of gastrointestinal bleeding, accounting for approximately 1-2% of all cases of gastrointestinal bleeding. Dieulafoy's lesion usually occurs in the lesser curvature of the stomach within six centimeters of the gastroesophageal junction. On the other hand, extragastric Dieulafoy's lesions are uncommon. Diagnosing an extragastric Dieulafoy's lesion by endoscopy can be challenging because of its small size and obscure location. The key elements for an accurate diagnosis include heightened awareness and a careful early endoscopic evaluation following a bleeding episode. Various endoscopic hemostatic techniques can be used for treatment. This paper presents a case of successful hemostasis using argon plasma coagulation for a life-threatening duodenal Dieulafoy's lesion.