Fig. 3From: Pleural effusion as an initial manifestation in a patient with primary pulmonary monoclonal B-cell lymphocyte proliferative diseasePhenotypic lymphocyte screening by flow cytometry of right pleural effusion showed monoclonal B-cell lymphocyte proliferation. Lymphocytes (p1, red): 60% of nucleated cells. B cells: 19% of lymphocytes, expressing CD19, CD20 and CD38; partially expressing CD5; and not expressing CD10. CD20(+) cells: expressing CD22, FMC7; restrictedly expressing kappa light chain; and not expressing CD23, CD103, and lambda light chainBack to article page