A Case of Duodenal Lipoma Treated by Endoscopic Submuosal Dissection

A 57-year-old man, complaining of anorexia, was referred to our hospital for treatment of duodenal submuosal tumor (SMT) . The lesion was diagnosed as duodenal lipoma measuring 3 cm, based on the findings of esophagogastroduodenoscopy, endoscopic ultrasonography, and magnetic resonance imaging. Endoscopic submucosal dissection (ESD) for duodenal lipoma was performed, leading to local complete resection of the SMT, and the diagnosis of lipoma was confirmed histopathologically. There has been only one case report of duodenal lipoma undergoing ESD in the literature. Accumulation of such case is awaited to determine the efficacy of ESD for duodenal lipoma.