Breast tumor tissue microarray (slide 18 of 2600 cases of breast cancer survey slide set), 2 cores per case. Including pathology grade, TNM Classification, clinical stage, and IHC results of ER, PR, and Her-2. - 83 cases of Invasive carcinoma - 4 cases of mucinous carcinoma - 9 cases of medullary carcinoma - 6 cases of invasive lobular carcinoma - 1 case of apocrine carcinoma and Cystosarcoma phyllodes