Routine flow cytometric diagnosis of lymphoproliferative disorders.

The results of the analysis of suspected lymphoproliferative disorders using flow cytometry (FACS II) over the past 12 months have been evaluated and assessed with respect to "conventional" microscopical examination. The major advantages in using these methods is the speed, the number of parameters which are capable of measurement, the sensitivity, and the ability to quantitate large numbers of cells for a particular criterion. These qualities have proved extremely helpful in the diagnosis of chronic lymphocytic leukemia, acute lymphoblastic leukemia, lymphoma, and other abnormalities. The combination of flow cytometry and a panel of monoclonal antisera (many of which are available commercially) allows the investigator a system of fine resolution which can confidently identify or characterize an abnormal clone or population of cells. With the increase in advanced flow cytometers, it is suggested that time should be allocated for the routine analysis of possible lymphomas and leukemias to allow quick and accurate evaluations of the disease status.