Flow Cytometry: a Helpful Ancillary Tool in the Hematopathologist World But Can Be Misleading Without Morphology

Abstract Flow cytometry (FC) is a powerful tool for characterizing hematopoietic cells and plays a critical role in the diagnosis and classification of hematopoietic neoplasms. However, its accuracy rate alone without morphology is questionable. It is imperative to always have clinical and morphologic correlation. Herein, we describe a case of nasal mass, which could have been misdiagnosed as a hematologic malignancy based on FC alone without morphologic examination.