Table 1: Immunostaining percentage (%) and staining intensity (I) of ERα, ERβ, and PR in different canine mammary tumors.

S1.No.Tumor typeERα% (I)ERβ% (I)PR% (I)

1Papillary cystadenomaNegative10.7 (+)Negative
2FibrocystadenomaNegative33.6 (+)44.4 (++)
3Duct papillomaNegative57.2 (++)18.5 (+)
4FibroadenomaNegative47.1 (+++)Negative
5FibroadenomaNegative36.1 (++)51.4 (++)
6Mixed mammary tumorNegativeNegative53.5 (+++)
7Mixed mammary tumorNegative25.2 (+)Negative
8Mixed mammary tumorNegative36.8 (++)51.9 (+++)
9Mixed mammary tumorNegativeNegativeNegative
10Mixed mammary tumorNegative57.6 (++)60.2 (+++)
11Mixed mammary tumorNegative79.6 (+++)Negative
12Papillary adenocarcinomaNegative10.5 (++)Negative
13Papillary adenocarcinomaNegativeNegative61.9 (+++)
14Papillary cystadenocarcinomaNegativeNegativeNegative
15Papillary cystadenocarcinomaNegative15.9 (++)60.5 (+)
16Papillary cystadenocarcinomaNegativeNegative46.4 (++)
17Papillary cystadenocarcinomaNegative11.3 (++)Negative
18Papillary cystadenocarcinomaNegative11.1 (+)72.5 (+++)
19Solid adenocarcinomaNegative48.5 (++)17 (++)
20Solid adenocarcinomaNegative26 (+)Negative
21Solid adenocarcinomaNegative77.3 (+++)Negative
22Complex adenocarcinomaNegative29.2 (+)Negative
23Complex adenocarcinomaNegative94.7 (++)Negative
24Complex adenocarcinomaNegative29.2 (+)32.3 (++)
25CarcinosarcomaNegative16.1 (++)Negative
26Carcinosarcoma15.96 (+++)91.1 (+++)Negative
27Sebaceous adenocarcinomaNegativeNegative19.4 (+++)
28Squamous cell carcinomaNegative33.2 (+)43.5 (+++)
29HemangiopericytomaNegative99 (+++)35.8 (+++)