Distal Bile Duct Cancer Clinical TNM Finding v7

**Semantic type:** Finding

**Definition:** A clinical finding about one or more characteristics of distal bile duct cancer, following the rules of the TNM AJCC v7 classification system. The clinical evaluation usually depends on the results of ultrasonography, contrast-enhanced multidetector computerized tomography (CT), or magnetic resonance cholangiopancreatography (MRCP), including arterial and portal venous phases, with thin sections whenever possible. Clinical staging may also be based on findings from surgical exploration when the main tumor mass is not resected. (from AJCC 7th Ed.)