CD8A and Buschke-Ollendorff syndrome: Results showed that, as compared to BOS grafts, RAS grafts were characterized by a reduced CD4 pos T lymphocytic infiltrate (BOS vs. Ras: p = 0.02; Figures 1A, B) and a predominant presence of CD8pos T lymphocytes (BOS vs. Ras: p = 0.02; Figures 1C, D) that resulted in the inversion of the CD4/CD8 ratio (BOS vs. Ras: p = 0.003; Figure 1E).