NCIt related terms : IIB; Stage IIB Extrahepatic (Distal) Bile Duct Cancer;
NCIt definition : Stage IIB includes: (T2, N1, M0); (T3, N0, M0); (T3, N1, M0). 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. N0: No regional lymph node metastasis. N1: Metastasis
in one to three regional lymph nodes. M0: No distant metastasis. (AJCC 8th ed.);