Clinical Flow-Cytometric Testing in Chronic Lymphocytic Leukemia

  • Dalia A. Salem
  • Maryalice Stetler-StevensonEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2032)


Flow-cytometric demonstration of the typical chronic lymphocytic leukemia (CLL) immunophenotype is vital for diagnosis. CLL has a characteristic immunophenotype, expressing CD5, CD19, dim CD20, dim CD22, CD23, bright CD43, dim CD45, dim to negative CD79b, dim CD81, CD200, and dim monoclonal surface immunoglobulin. This characteristic immunophenotype allows a definitive diagnosis and the ruling out of another leukemia or lymphoma. Flow cytometry also provides important prognostic information and accurate assessment of response to therapy. Here we describe optimal specimen collection, red cell lysis, appropriate panel, cell staining, acquisition on a flow cytometer, and analysis for CLL specimens.

Key words

Flow cytometry Immunophenotype Chronic lymphocytic leukemia Minimal residual disease 


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Laboratory of PathologyCCR, NCI, NIHBethesdaUSA
  2. 2.Clinical Pathology Department, Faculty of MedicineMansoura UniversityMansouraEgypt

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