Clinical outcomes and risk factors for local residual/recurrent tumors after endoscopic submucosal dissection including major papilla for laterally spreading ampullary tumors.
BACKGROUND AND STUDY AIMS Endoscopic papillectomy (EP) enables resection of ampullary lesions but is limited by piecemeal resection and high recurrence rates. To overcome these limitations, we developed endoscopic submucosal dissection including papilla (ESDIP). This study aimed to evaluate clinical outcomes and identi...