Table 2. Tumour and lymph node staging [24].
| T1 | T2 | T3 | T4 | Tx | All | |
| N0 | 7 | 20 | 9 | 8 | 0 | 44 |
| N1 | 2 | 3 | 2 | 2 | 0 | 9 |
| N2 | 5 | 4 | 4 | 3 | 1 | 17 |
| N3 | 0 | 3 | 0 | 1 | 2 | 6 |
| Nx | 0 | 0 | 0 | 1 | 1 | 2 |
| All | 14 | 30 | 15 | 15 | 4 | 78 |
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