Perihilar Bile Duct Cancer Pathologic TNM Finding v7

**Semantic type:** Finding

**Definition:** A pathologic finding about one or more characteristics of perihilar bile duct cancer, following the rules of the TNM AJCC v7 classification system. The pathologic staging is based on examination of the resected specimen and/or biopsies sufficient to document the greatest extent of the disease. (from AJCC 7th Ed.)