ABSTRACT
Duodenal lipomas are relatively uncommon and asymptomatic unless they are large. Tumors greater than 4 cm in diameter can cause obstructive symptoms as a result of intussusception necessitating a surgical resection. However, acute upper gastrointestinal bleeding is an extremely rare complication. Duodenal lipomas are most often submucosal but they can also be subserosal. Their shape can vary, and they can be either sessile or pedunculated. The overlying mucosa is usually normal but it may be ulcerated. Those that cause symptoms require treatment. Endoscopic snare polypectomy has been used to treat clinically symptomatic lipomas. A detachable snare may reduce the risk of complications after a polypectomy, including bleeding and perforation. We report a case of duodenal lipoma accompanied by massive upper GI bleeding that was treated by an endoscopic polypectomy using a detachable snare.