A recent study by Pyzer et al defined CD11b+HLA‐DR−CD14∓CD33+CD15− and CD11b+HLA‐DR−CD14−CD33−CD15+ as monocytic and granulocytic MDSCs, respectively, among PB MNCs from AML patients and according to flow cytometry.29 This evidence concerns the gene FUT4 and acute myeloid leukemia.