Table 1: Immunohistochemical markers



Antibody Clone Expression in tumor
Gross cystic disease fluid protein -15(GCDFP -15) 23A3 Focally positive
Mammaglobin 304-1A5 Negative
Wilms' tumor protein (WT1) 6F-H2 Negative in tumor cells, positive in serous epithelium
Estrogen receptor α EP1 3+ in 85% of tumor cells
Progesteron receptor PgR636 3+ in 85% of tumor cells
Human epidermal growth factor receptor (HER2) Polyclonal C-erbB-2 Oncoprotein Negative
p53 Protein DO-7 Wild type expression
Ki67 MIB-1 < 10% positive nuclei in invasive carcinoma