Perihilar Bile Duct Cancer pT4 TNM Finding v8

**Semantic type:** Finding

**Definition:** Perihilar bile duct cancer with tumor invading the main portal vein or its branches bilaterally, or the common hepatic artery; or unilateral second-order biliary radicals with contralateral portal vein or hepatic artery involvement. (from AJCC 8th Ed.)

**Synonyms:** - Hilar Cholangiocarcinoma pT4 TNM Finding v8 - Perihilar Cholangiocarcinoma pT4 TNM Finding v8 - pT4