HLA-DRB1 and myeloid sarcoma: The strong association between HLA-DRB1-DQB1 loci and MS has been established across many populations, with consistent findings indicating that predisposition is carried by the *15∶01-*06∶02 haplotype in all populations of North-European ancestry [4], while in Israel [8] and in Mediterranean [5]–[7] populations predisposition to the disease is carried by different DRB1 variants.