Pancreatic Duct Involvement in Well-Differentiated Neuroendocrine Tumors is an Independent Poor Prognostic Factor

Background The biological behavior of well-differentiated neuroendocrine tumors of the pancreas (PNETs) is difficult to predict. This study was designed to determine whether involvement of the main pancreatic duct (MPD) serves as a poor prognostic factor for PNETs.