Although not statistically significant after applying the Bonferroni correction, the percentages of CD4+CXCR3+ T cells (Th1 cells; P = 0.039), CD8+CXCR3+ T cells (Tc1 cells; P = 0.020) and the ratio of CD4+CXCR3+/CD4+CCR4+ indicating Th1/Th2 (P = 0.023) tended to be higher in MS patients compared with HC. Here, CCR4 is linked to myeloid sarcoma.