Active bleeding from a periampullary duodenal diverticulum that was difficult to diagnose but successfully treated using hemostatic forceps: a case report

Introduction Although duodenal diverticula are common, periampullary duodenal diverticula are rare. Periampullary duodenal diverticula are usually asymptomatic and may be difficult to diagnose and treat. However, they may present with massive bleeding, requiring prompt diagnosis.