Immunophenotyping of acute non-lymphoblastic leukaemias

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Abstract
Using monoclonal antibodies specific for myelomonocytic cells, 40 non-lymphoblastic leukaemias were analysed applying immunostaining to cytospin preparations. Based on the reactivity patterns six groups of acute non-lymphoblastic leukaemias could be determined, mirroring the bimodal differentiation pathway of myelomonocytic cells. Comparative enzyme cytochemical analysis did not render a clear cut correlation and discrimination of the immunocytochemically defined groups. It is concluded that only the application of a broad panel of immunocytochemical and enzyme cytochemical methods allow a sound subdivision and diagnosis of acute non-lymphoblastic leukaemias.