One of the patients with a PR was a 63-year-old male with carcinoma ex-pleomorphic adenoma that stained 100% for PD-L1, who was previously treated with surgery, radiation, and three previous regimens, which, in total, consisted of pertuzumab, trastuzumab, leuprolide, carboplatin, paclitaxel, and bicalutamide (Fig. 3b). Here, CD274 is linked to carcinoma.