Stage IV Hilar Cholangiocarcinoma AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IV includes: IVA: (Any T, N2, M0); IVB: (Any T, Any N, M1). 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. M1: Distant metastasis. (AJCC 8th ed.)

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