CD33 and acute lymphoblastic leukemia: Flow cytometry (FCM) of bone marrow revealed CD34(+), CD117(−), CD33(+), CD64(−), CD13(+), CD14(−), CD274(−), TSLPR(−), CD11b(−), IgM(+), CD71(−), CD56(+), CD2(−), CD7(−), CD5(−), CD10(+), CD3(−), CD4(−), CD8(−), CD38(+), CD81(+), HLA-DR(+), CD19(+), CD22(+), CD20(+), cMPO(−), cCD3(−), cCD79a(+), TDT(+), CD58(+), CD61(−), CD235a(−), and CD11c(−), and these findings are compatible with BCP-ALL (Fig. 3).