Flow cytometry analysis revealed that the blasts were positive for cytoplasmic MPOpartial, CD14partial, CD64, CD13, CD33, CD117dim, CD7partial, and HLA-DR; and negative for cytoplasmic and surface CD3, CD10, CD19, cytoplasmic CD22 and CD79a, consistent with AML with monocytic differentiation (Fig. 1I). This evidence concerns the gene CD19 and acute myeloid leukemia.