Fig. 2From: Prognostic significance of the programmed death ligand 1 expression in clear cell renal cell carcinoma and correlation with the tumor microenvironment and hypoxia-inducible factor expressionA case exhibiting PD-L1-expression in a few cells with a mild lymphocyte density in the microenvironment, low HIF-2α expression, and high HIF-1α expression (× 400). a Scarce incomplete membranous PD-L1 staining. b PD-1-positive mild lymphocytic infiltration, c CD4-positive mild lymphocytic infiltration. d CD8-positive mild lymphocytic infiltration, e Low-score HIF-2α expression. f High-score HIF-1α expressionBack to article page