label: Stage IIIB Hilar Cholangiocarcinoma AJCC v7
label_lc: stage iiib hilar cholangiocarcinoma ajcc v7
description: "Stage IIIB includes: T1-3, N1, M0. T1: Tumor confined to the bile duct, with extension up to the muscle layer or fibrous tissue.  T2a: Tumor invades beyond the wall of the bile duct to surrounding adipose tissue.  T2b: Tumor invades adjacent hepatic parenchyma.  T3: Tumor invades unilateral branches of the portal vein or hepatic artery.  N1: Regional lymph node metastasis (including nodes along the cystic duct, common bile duct, hepatic artery, and portal vein).  M0: No distant metastasis. (from AJCC 7th Ed.)"