pancreatic duct blockagepancreatic duct carcinomaenlarged pancreatic duct causesmalignant neoplasm of pancreatic ductcholangiocarcinoma pancreatic cancerpancreatic cholangiocarcinomapancreatic ductaldilated biliary ductbiliary duct cancerbreast cancer in ductcancer of the pancreatic ductnordfab ducting