Extension Size, Perineural Invasion Positive AJCC 6 Table CSv2
Notes
**Note**: CS Version 2 cases, when CS Site-Specific Factor 6 Perineural Invasion = 010, for CS Extension codes 100-400 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Extension as shown in this table.| CS Extension | AJCC 6 T |
|---|---|
| 100, 150, 155, 200, 250, 270, 300, 320, 340, 400 | T4 |
| CS Extension | AJCC 6 T |
|---|---|
| 100 | T4 |
| 150 | T4 |
| 155 | T4 |
| 200 | T4 |
| 250 | T4 |
| 270 | T4 |
| 300 | T4 |
| 320 | T4 |
| 340 | T4 |
| 400 | T4 |