| Tumor Characteristics | n. | % |
| Pathological types Invasive duct carcinoma |
44 |
97.0 |
| Medullary carcinoma | 1 | 3.0 |
| Grade |
|
|
| Grade I | 0 | 0 |
| Grade II | 38 | 84.4 |
| Grade III | 7 | 15.5 |
| Lymph node positivity Positive Negative |
39 6 |
86.6 13.3 |
| Tumor size T1 T2 T3 T4 |
0 26 7 12 |
0 57.7 15.5 26.6 |
| Tumor number |
|
|
| Single | 32 | 71.0 |
| Multifocal | 13 | 28.8 |
| Estrogen receptors Positive Negative |
27 18 |
60.0 40.0 |
| Progesterone receptors Positive Negative |
23 22 |
51.1 48.8 |
| HER 2 receptors Positive Negative |
20 25 |
55.5 44.5 |
| KI67 |
|
|
| >20% | 10 | 22.2 |
| <20% | 35 | 77.7 |
| Molecular subtypes |
|
|
| Luminal A | 4 | 8.8 |
| Luminal B | 23 | 51.1 |
| Her2 | 10 | 22.2 |
| Triple negative | 8 | 17.7 |