Stodtmeister Cells (Polymorphs with Pelger-Huët Anomaly) Showing "Faggots" in Mixed Phenotypic Acute Leukemia (T/Myeloid).

"Faggot" cells, named for the resemblance of multiple Auer rods to a bundle of sticks, are often considered sine qua non for acute promyelocytic leukemia. However, blasts in other acute myeloid leukemias rarely also show faggot cells. This case demonstrates faggot cells in stodtmeister cells in mixed phenotypic acute leukemia. In addition to being uncommon, this case also highlights the importance of immunophenotyping and genetic analysis in avoiding misdiagnosis and inappropriate therapy.