Table 2 Pathological features of the tumors included in the study
Parameter | 58 (n) | 100% | |
|---|---|---|---|
Histological subtype | Carcinoma of no special type (bilateral) | 28 | 48.3% |
Lobular (bilateral) | 6 | 10.3% | |
Discordant histology | 24 | 41.4% | |
Hormone receptor status | Positive (bilateral) | 45 | 77.6% |
Positive (unilateral) | 6 | 10.3% | |
Negative (bilateral) | 7 | 12.1% | |
HER2 | Positive (bilateral) | 5 | 8.6% |
Positive (unilateral) | 6 | 10.3% | |
Equivocal (bilateral) | 1 | 1.7% | |
Equivocal (unilateral) | 3 | 5.2% | |
Negative (bilateral) | 43 | 74.1% | |
Ki67 | > 20% (bilateral) | 24 | 41.4% |
> 20% (unilateral) | 14 | 24.1% | |
< 20% (bilateral) | 20 | 34.5% |