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The 7th edition of the AJCC-TNM classification system.
| Stage* | T | N | M |
|---|---|---|---|
| I | T1 | N0 | M0 |
| T2 | N0 | M0 | |
| II | |||
| a | T3 | N0 | M0 |
| b | T4a | N0 | M0 |
| c | T4b | N0 | M0 |
| III | |||
| a | T1-T2 | N1 | M0 |
| T1 | N2a | M0 | |
| b | T3-T4a | N1 | M0 |
| T2-T3 | N2a | M0 | |
| T1-T2 | N2b | M0 | |
| c | T4a | N2a | M0 |
| T3-T4a | N2b | M0 | |
| T4b | N1-N2 | M0 | |
| IV | Any T | Any N | M1 |
