A case of duodenal Brunner’s gland hyperplastic polyp causing with hemorrhage taking antithrombotic drugs

A 65-year-old man admitted for melena who was receiving anticoagulant and antiplatlet therapy for prosthetic heart val‑ves. A giant pedunculated polyp with erosion on its surface in the duodenal bulb was found by upper gastrointestinal examination and revealed hemorrhagic state. This polyp was resected by endoscopic technique. The resected specimen revealed 28×18 mm in size and pathologically diagnosed as a Brunner's gland hyperplasia. Brunner’s gland hyperplastic polyp was common benign tumor in the duodenum,but rarely it causes gastorointestinal bleeding. This case was reported in addition with the literature.