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

Adenocarcinoma

25

86.2%

3

Carcinosarcoma

1

3.4%

0

Adenosquamous

2

6.8%

0


Parous

Mammary intra-epithelial neoplasia

2

8.3%

0

Adenocarcinoma

21

87.5%

7

Carcinosarcoma

0

0

0

Adenosquamous

1

4.2%

0


ERα, estrogen receptor-alpha.

Dunphy et al. Breast Cancer Research 2008 10:R43   doi:10.1186/bcr2094

Open Data