Flow cytometric analysis of immunophenotypic and DNA values in non-Hodgkin's B-cell lymphomas classified according to the Kiel Classification and Working Formulation.

B-cell non-Hodgkin's lymphomas classified previously according to the Kiel Classification were reclassified according to the Working Formulation. The comparative analysis of flow cytometric data was done for these two classification systems. It was established that flow cytometric data describe defined groups of malignancy more precisely in the Working Formulation, especially in case of the low grade lymphomas.