Papillary tumors derived from biliary epithelium are unusual neoplasms that can arise in the intra- and/or extrahepatic bile ducts and can either remain localized or spread extensively along the ...

Biliary cystadenocarcinoma with oncocytic differentiation was first reported in 1992. This is a report of a second case. The patient (a 71-year-old man) was admitted to our hospital complaining of ...