Breast. Needle biopsy. Strong positive staining in the nuclei of all viable tumor cells. Higher magnification. WT1 (clone 6F-H2 against N-terminal).
Breast. Needle biopsy. Strong positive staining in the nuclei of all viable tumor cells and cytoplasmic staining of endothelial cells. WT1 (clone 6F-H2 against N-terminal).
Breast. Needle biopsy. Negative staining of all tumor cells. Synaptophysin.
Breast. Needle biopsy. Strong positive staining in the nuclei of all viable tumor cells. PAX8.
Breast. Needle biopsy. Highest magnification of preserved viable tumor tissue. H&E. 40x.
Breast. Needle biopsy. Mostly necrotic tissue with small rim of preserved viable tumor tissue at the periphery. Higher magnification. H&E.
Breast. Needle biopsy. Mostly necrotic tumor with small rim of preserved viable tumor tissue at the periphery. H&E.
Breast. Needle biopsy. Negative staining of tumor cells and positive staining GCDFP15 of benign breast structures. GCDFP15.
Breast. Needle biopsy. Negative staining of tumor cells for GATA3 and positive staining of benign breast structures. GATA3.
Breast. Needle biopsy. Weak to moderate positive staining for Estrogen Receptor in the nuclei of tumor cells. ER.
Breast. Needle biopsy. Negative immunohistochemical staining for Cytokeratin 20 in tumor cells. CK20.
Breast. Needle biopsy. Negative immunohistochemical staining for Cytokeratin 7 in tumor cells. Notice positive staining of benign breast structures (epithelial and myoepithelial cells). CK7.