O'Shea, J S Biliary cystadenocarcinoma of extrahepatic duct origin arising in previously benign cystadenoma. [electronic resource] - The American journal of gastroenterology Dec 1987 - 1306-10 p. digital Publication Type: Case Reports; Journal Article; Review ISSN: 0002-9270 Subjects--Topical Terms: Bile Duct Neoplasms--pathologyCystadenocarcinoma--pathologyCystadenoma--pathologyFemaleHepatic Duct, Common--pathologyHumansMiddle Aged