Study protocol of the ESAP study : Endoscopic papillectomy vs. surgical ampullectomy vs. pancreaticoduodenectomy for ampullary neoplasm—a Pancreas2000/EPC study
Background: Lesions of the Ampulla of Vater are a rare condition and represent <10% of peri-ampullary neoplasms. Nevertheless, ampullary adenomas have the potential for malignant transformation to ampullary carcinomas by an adenoma-to-carcinoma sequence. Thus, adequate patient selection and complete resection (R0) of non-invasive ampullary lesions either by endoscopic papillectomy (EP), surgical a
