Determining Which Extension Calculation Table Applies for the AJCC 7 T
| CS SSF6 Perineural Invasion | AJCC 7 T |
|---|---|
| 000, 997-999 | Extension Size Perineural Invasion Negative or Unknown AJCC7 |
| 010 | Extension Size Perineural Invasion Positive AJCC7 |
| 888, 988 | Extension Size Perineural Invasion 888, 988 AJCC7 |