Abstract：
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.
摘要：
Dieulafoy病变是胃肠道出血的罕见原因，约占所有消化道出血病例的1-2％。Dieulafoy的病变通常发生在胃食管交界处六厘米内的胃的较小弯曲处。另一方面,胃外Dieulafoy的病变并不常见。通过内窥镜检查诊断胃外Dieulafoy的病变可能具有挑战性，因为其体积小且位置模糊。准确诊断的关键要素包括提高意识和出血事件后仔细的早期内窥镜评估。各种内窥镜止血技术可用于治疗。本文介绍了使用氩等离子体凝固术成功止血的一例，用于危及生命的十二指肠Dieulafoy病变。
