Characteristic | No. of cases (%) | Characteristic | No. of cases (%) |
---|---|---|---|
Histologic subtype | Estrogen receptor | ||
IDC | 166 (74.1%) | Positive | 160 |
DCIS only | 37 (16.5%) | Negative | 64 |
ILC | 9 (4.0%) | Progesterone receptor | |
Papillary carcinoma | 4 (1.8%) | Positive | 138 |
Metaplastic carcinoma | 2 (< 1%) | Negative | 86 |
Mucinous carcinoma | 2 (< 1%) | HER2 status | |
ACC | 1 (< 1%) | Positive | 55 |
Othersa | 3 (1.3%) | Negative | 169 |
Tumor size | Ki-67 indexb | ||
< 1.0 cm | 42 | Low | 30 |
≥ 1.0 cm | 182 | High | 152 |
Nuclear grade | |||
Low | 133 | ||
High | 91 |