Table I.
Clinicopathological information of primary breast tumor.
| Variables | Number of patients | % |
|---|---|---|
| Age, years | ||
| <40 | 8 | 10.3 |
| 40–59 | 47 | 60.3 |
| ≥60 | 23 | 29.5 |
| Median | 53 | |
| Tumor position | ||
| Left | 34 | 43.6 |
| Right | 25 | 32.1 |
| Bilateral | 14 | 17.9 |
| Unknown | 5 | 6.4 |
| Tumor size | ||
| T0 | 2 | 2.6 |
| T1 | 22 | 28.2 |
| T2 | 29 | 37.2 |
| T3 | 12 | 15.4 |
| T4 | 1 | 1.3 |
| Unknown | 12 | 15.4 |
| Lymph node involvement | ||
| Positive | 44 | 56.4 |
| Negative | 20 | 25.6 |
| Unknown | 14 | 17.9 |
| Stagea | ||
| 1 | 6 | 7.7 |
| 2 | 28 | 35.9 |
| 3 | 8 | 10.3 |
| 4 | 23 | 29.5 |
| Unknown | 13 | 16.7 |
| Histology | ||
| ILC | 51 | 65.4 |
| IDC | 19 | 24.4 |
| Other | 2 | 2.6 |
| Unknown | 6 | 7.7 |
| ER status | ||
| Positive | 49 | 62.8 |
| Negative | 8 | 10.3 |
| Unknown | 21 | 26.9 |
| PR status | ||
| Positive | 36 | 46.1 |
| Negative | 17 | 21.8 |
| Unknown | 25 | 32.1 |
| HER-2 status | ||
| Positive | 5 | 6.4 |
| Negative | 40 | 51.3 |
| Unknown | 33 | 42.3 |
ILC, invasive lobular cancer; IDC, invasive ductal cancer; ER, estrogen receptor; PR, progesterone receptor; HER-2, human epidermal growth factor receptor 2; T, tumor.
a
The tumor stages were determined according the 2003 American Joint Committee in Cancer staging manual.