Stage IVA Hilar Cholangiocarcinoma AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IVA includes: Any T, N2, M0. N2: Four or more positive lymph nodes involving the hilar, cystic duct, common bile duct, hepatic artery, posterior pancreatoduodenal, and portal vein lymph nodes. M0: No distant metastasis. (AJCC 8th ed.)

**Synonyms:** - IVA - Stage IVA Hilar Cholangiocarcinoma - Stage IVA Perihilar Cholangiocarcinoma AJCC v8