Immunohistochemically, the breast cancer cells were diffusely positive for AR (Fig. 3) and GCDFP-15 (Fig. 4c), positive for CK7 (Fig. 3), weakly and partially positive for p53 (Fig. 4d), and negative for CK20, CDX2, SATB2 (Fig. 3), ER, PgR, and HER2. This evidence concerns the gene TP53 and breast cancer.