Table 1 Characteristics of spontaneous mammary tumors in BALB/c-Trp53+/- mice
Reproductive history | Histopathology | Number | Frequency | ERα-positive |
|---|---|---|---|---|
Nulliparous | Mammary intra-epithelial neoplasia | 1 | 3.4% | 1 |
| Â | Adenocarcinoma | 25 | 86.2% | 3 |
| Â | Carcinosarcoma | 1 | 3.4% | 0 |
| Â | Adenosquamous | 2 | 6.8% | 0 |
Parous | Mammary intra-epithelial neoplasia | 2 | 8.3% | 0 |
| Â | Adenocarcinoma | 21 | 87.5% | 7 |
| Â | Carcinosarcoma | 0 | 0 | 0 |
| Â | Adenosquamous | 1 | 4.2% | 0 |