Analysis of extrahepatic bile duct carcinomas according to the new American Joint Committee on Cancer staging system focused on tumor classification problems in 222 patients
Bile Duct Neoplasms
Bile Ducts, Extrahepatic
Based on a proposed histologic definition, depth of invasion was practical for evaluating the prognosis of patients with middle and upper extrahepatic bile duct carcinomas. Therefore, the authors recommended changing the current pT1 and pT2 classifications to more precise pathologic terminology.