Extension Periductal Invasion AJCC 7 Table

Notes

**Note**: For CS Extension codes 100-520, 580, 620, 631-650, 660-665, 675-755, 765-800 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Site-Specific Factor 10, as shown in this table.
CS Extension CS SSF 10 AJCC 7 T
100-170, 500-510 000, 988, 999 T1
200-270, 520, 631 000, 988, 999 T2a
300-475, 632, 650, 675 000, 988, 999 T2b
480 000, 988, 999 T2NOS
580, 620, 640-645, 660-665, 700-755, 765-800 000, 988, 999 T3
999 000, 988, 999 TX
100-170, 500-510, 200-270, 520, 631, 300-475, 632, 650, 675, 480, 999 010 T4
580, 620, 640-645, 660-665, 700-755, 765-800 010 T4
CS Extension CS SSF 10 AJCC 7 T
100-170, 500-510 000 T1
200-270, 520, 631 000 T2a
300-475, 632, 650, 675 000 T2b
480 000 T2NOS
580, 620, 640-645, 660-665, 700-755, 765-800 000 T3
999 000 TX
100-170, 500-510 010 T4
200-270, 520, 631 010 T4
300-475, 632, 650, 675 010 T4
480 010 T4
580, 620, 640-645, 660-665, 700-755, 765-800 010 T4
999 010 T4
100-170, 500-510 988, 999 T1
200-270, 520, 631 988, 999 T2a
300-475, 632, 650, 675 988, 999 T2b
480 988, 999 T2NOS
580, 620, 640-645, 660-665, 700-755, 765-800 988, 999 T3
999 988, 999 TX