Additional file 2: of Efficacy and tolerability of anti-programmed death-ligand 1 (PD-L1) antibody (Avelumab) treatment in advanced thymoma

Figure S1. PD-L1 expression in thymoma and thymic carcinoma. (A, E) WHO B3 thymoma with 95% thymic epithelial cell PD-L1 positivity and 3+ intensity. (B, F) WHO B2 thymoma with 50% thymic epithelial cell PD-L1 positivity and 2+ intensity. (C, G) Thymic carcinoma with 90% thymic epithelial cell PD-L1 positivity and 2+ intensity. (D, H) Thymic neuroendocrine carcinoma with focal thymic epithelial cell PD-L1 positivity and 1+ intensity. (A-D: 10x magnification; E-H: 40x magnification.). (JPG 123 kb)