Table 5 Changes in breast cancer subtype between primary breast tumors and matched recurrent lesions
Subtype/primary | No. of cases | Recurrent lesions | Discordance % | |||
|---|---|---|---|---|---|---|
Luminal A | Luminal B | HER2 | TN | |||
Luminal A | 57 | 41 (71.2) | 8 (14.0) | 1 (1.8) | 7 (12.3) | 28.8 |
Luminal B | 6 | 2 (33.3) | 4 (66.7) | 33.3 | ||
HER2 | 16 | 0 | 2 (12.5) | 13 (81.3) | 1 (6.3) | 18.7 |
TN | 18 | 1 (5.6) | 0 | 2 (11.1) | 15 (83.3) | 16.7 |
Total | 97 | 44 | 14 | 16 | 23 | 24.7 |