Stage III perihilar bile duct cancer

Definition of stage III perihilar bile duct cancer
National Cancer Institute

stage III perihilar bile duct cancer

(... PAYR-ee-HY-ler bile dukt KAN-ser)
Stage III is divided into stages IIIA, IIIB, and IIIC. In stage IIIA, cancer has spread to branches on one side of the hepatic artery or of the portal vein. In stage IIIB, cancer has spread to one or more of the following: (1) the main part of the portal vein or its branches on both sides; (2) the common hepatic artery; (3) the right hepatic duct and the left branch of the hepatic artery or of the portal vein; and/or (4) the left hepatic duct and the right branch of the hepatic artery or of the portal vein. In stage IIIC, cancer has spread to 1 to 3 nearby lymph nodes.

Source: NCI Dictionary of Cancer Terms