A giant Brunner gland hamartoma successfully treated by endoscopic excision followed by transanal retrieval

Rationale: Brunner gland hamartoma (BGH) is a rare tumor of the duodenum. Although BGH is a benign tumor, larger lesion with gastrointestinal symptoms requires tumor removal. We report a giant BGH, successfully treated by endoscopic excision followed by transanal retrieval. Patient concerns: A 38-year-old woman complained of severe anemia, tarry stool, and vomiting. Diagnoses: Esophagogastroduodenoscopy (EGD) showed a pedunculated giant...