Extension Size, Perineural Invasion Positive AJCC 7 Table

Notes

**Note**: When CS Site-Specific Factor 6 Perineural Invasion = 010, for CS Extension codes 100- 400 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Extension as shown in this table.
CS Extension AJCC 7 T
100, 150, 155, 200, 250, 270, 300, 320, 340, 400 T3a
CS Extension AJCC 7 T
100 T3a
150 T3a
155 T3a
200 T3a
250 T3a
270 T3a
300 T3a
320 T3a
340 T3a
400 T3a