In BCC, a moderate positive correlation (ρ = 0.40 to 0.59) was obtained for PD-1/PD-L1 (ρ = 0.496, p < 0.001) and PD-L1/CD86 (ρ = 0.522, p < 0.001). This evidence concerns the gene CD86 and skin basal cell carcinoma.