Fig. 3

Immunohistochemical analysis of breast cancer samples. a Infiltrating lobular carcinoma at 10× magnification power showing that tumor cells are markedly positive for estrogen hormonal nuclear receptors in about 85% of tumor cells, score 3+ 5/8. b Infiltrating lobular carcinoma of the breast at 10× magnification power showing that tumor cells are moderately positive for progesterone hormonal nuclear receptors in about 35% of tumor cells, score 2+ 4/8. c Infiltrating duct carcinoma at 10× magnification power showing that tumor cells are markedly positive staining with continuous and intense membranous staining for Her2⁺ protein, over-expression score + 3