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AJCC-TNM staging distribution
| Perihilar (n = 37) | Distal (n = 31) | Total (n = 68) | |
| Tumor status | |||
| T1 | 3 | 3 | 6 |
| T2 | 8 | 5 | 13 |
| T3 | 16 | 9 | 25 |
| T4 | 3 | 6 | 9 |
| Unknown | 7 | 8 | 15 |
| Lymph node status | |||
| N0 | 27 | 19 | 46 |
| N1 | 10 | 10 | 20 |
| Unknown | 1 | 1 | 2 |
| Metastases status | |||
| M0 | 31 | 28 | 59 |
| M1 | 6 | 3 | 9 |
AJCC: American Joint Committee on Cancer; TNM: Tumor, Node, Metastases.
