Table 1B.
Stage Grouping
| Stage | T | N | M | Dukes | MAC |
|---|---|---|---|---|---|
| 0 | Tis | N0 | M0 | — | — |
| I | T1 | N0 | M0 | A | A |
| T2 | N0 | M0 | A | B1 | |
| IIA | T3 | N0 | M0 | B | B2 |
| IIB | T4 | N0 | M0 | B | B3 |
| IIIA | T1, T2 | N1 | M0 | C | C1 |
| IIIB | T3, T4 | N1 | M0 | C | C2/C3 |
| IIIC | Any T | N2 | M0 | C | C1/C2/C3 |
| IV | Any T | Any N | M1 | — | D |
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