Table 5.
Histological and clinical characteristics of breast tumors
| Parameter | Symbol | % (n) |
|---|---|---|
| Estrogen receptor | ER+ | 81 (169) |
| ER− | 19 (40) | |
| Progesterone receptor | PR+ | 73 (153) |
| PR− | 27 (56) | |
|
Human epidermal growth factor receptor 2 |
HER+ | 18 (38) |
| HER− | 82 (171) | |
| Histological tumor grade | G1 | 35 (73) |
| G2 | 40 (84) | |
| G3 | 20 (42) | |
| Gx | 5 (10) | |
| Tumor size | Tis | 2 (3) |
| T1 | 71 (148) | |
| T2 | 21 (43) | |
| T3 | 0 (0) | |
| T4 | 2 (4) | |
| Tx | 5 (10) | |
| Nodules | N0 | 54 (113) |
| N1 | 35(74) | |
| N2 | 4 (8) | |
| N3 | 2 (4) | |
| Nx | 5 (10) |
ER estrogen receptor, PgR progesterone receptor, HER2 human epidermal growth factor Receptor 2, G histological grade, T tumor size, N lymph node metastasis