CXCL9 and thromboangiitis obliterans: Treatment with corticosteroids and teleradiotherapy could significantly reduce CXCL9 and CXCL10 serum concentrations in TAO patients compared to the control group and basal values of TAO patients, which suggests that CXCL9/CXCL10 can partially reflect the activity of orbital inflammation [142, 143].