Endoscopic resection or surgical management for nonampullary duodenal neoplasms?

An increasing number of nonampullary duodenal neoplasm (NADM) are reported probably due to the increasing prevalence of upper gastrointestinal endoscopy (1,2). NADM encompass a variety of lesions including adenomas, neuroendocrine tumors, and gastrointestinal stromal tumors.