Whereas BCCs and SCCs had similar scores for infiltrating CD4+ cells (BCC median score: 2.0, range: 1.5–2.1; SCC median score: 2.0, range: 1.7–2.4), their median scores were significantly higher than in NS (median: 0.6; range: 0.3–1.0; Table 4, Figure 3B). This evidence concerns the gene CD4 and skin basal cell carcinoma.