Differentiated PEL may express Glycophorin and hemoglobin A, absence of myeloperoxidase (MPO) and other myeloid markers [1], Blasts are negative for HLA-Dr, CD34, positive for CD117[1] | Differentiated PEL may express Glycophorin and hemoglobin A, absence of myeloperoxidase (MPO) and other myeloid markers [1], Blasts are negative for HLA-Dr, CD34, positive for CD117[1] |