SLC24A1 and myeloid sarcoma: Genotyping SLC24A1 p.Leu26Phe in Italian families and MS patients and controls from Canada identified two additional carriers diagnosed with MS (Table 1), and assessment of segregation in blood relatives from these probands (III-4 and II-14) identified the variant in one additional family member diagnosed with MS (II-10) and one unaffected sibling (III-5) who was 63 years of age at last examination (Fig 2).