IQGAP1 and myeloid sarcoma: Among the 92 MS patients that were heterozygous for at least one of the three SNPs studied, 58 patients were heterozygous for rs11052877 (CD69), 30 patients were heterozygous for rs907091 (IKZF3) and 61 were heterozygous for rs11609 (IQGAP1).