NCIt related terms : Stage IIIA Extrahepatic (Distal) Bile Duct Cancer; IIIA;
NCIt definition : Stage IIIA includes: (T1, N2, M0); (T2, N2, M0); (T3, N2, M0). T1: Tumor invading
the bile duct wall with a depth less than 5 mm. T2: Tumor invading the bile duct wall
with a depth of 5-12 mm. T3: Tumor invading the bile duct wall with a depth greater
than 12 mm. N2: Metastasis in four or more regional lymph nodes. M0: No distant metastasis.
(AJCC 8th ed.);