Blastic plasmacytoid dendritic cell neoplasm (BPDCN) arising in the setting of polycythemia vera (PV): An illustration of the emerging role of flow cytometry analysis in monitoring progression of myeloproliferative neoplasms. - El Hussein S; Yabe M; Wang W; Pemmaraju N; Loghavi S; Jelloul FZ; Fang H; Medeiros LJ; Burack WR; Evans AG; Liesveld JL; Bennett JM (EJHaem, 2022)