TP53 immunohistochemical staining in the biopsies of patients with metastatic triple-negative breast cancer. The invasive ductal carcinoma in inflammatory breast cancer (IBC) patients involving the dermis of the skin is shown. (A) Patient ID: TRF001321; (B) patient ID: TRF000155. TP53 immunohistochemical stains are negative for both. Tumor cells are present also in lymphatic spaces. Magnification: × 150.