FOXP3 and myeloid sarcoma: The results showed the presence of significant positive correlations between CA and CD4+/IFNγ+ T lymphocytes (RSp = 0.35, p = 0.02), as well as between the BA/CA ratio and CD4+/CD25high/Foxp3+ T lymphocytes (RSp = 0.35, p = 0.02) in MS patients.