Table 4. Anatomic Stage/Prognostic Groupsa
| Stage | T | N | M |
| aReprinted with permission from AJCC: Perihilar bile ducts. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 219-25. | |||
| 0 | Tis | N0 | M0 |
| I | T1 | N0 | M0 |
| II | T2a–b | N0 | M0 |
| IIIA | T3 | N0 | M0 |
| IIIB | T1–3 | N1 | M0 |
| IVA | T4 | N0–1 | M0 |
| IVB | Any T | N2 | M0 |
| Any T | Any N | M1 | |
