label: Stage I Hilar Cholangiocarcinoma AJCC v8
label_lc: stage i hilar cholangiocarcinoma ajcc v8
description: Stage I includes: T1, N0, M0. T1: Tumor confined to the bile duct, with extension up to the muscle layer or fibrous tissue. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)