Approach to the endoscopic resection of duodenal lesions

Figure 1 Duodenal lipomas are benign, subepithelial, adipose tumors that rarely cause symptoms. A round subepithelial lesion was found in the second-portion of the duodenum (A); which had a positive “pillow sign” suggesting a lipoma (B); endoscopic ultrasonography found a 2.1-cm hyperechoic lesion arising from the submucosal layer, which was diagnostic of a lipoma (C). As such, endoscopic therapy was not required.