Flow cytometry follicular lymphoma

Flow cytometric histograms show dual staining of CD10 and CD19, as well as CD20 and bcl-2. A monoclonal κ pattern, positive FMC-7, and partial positive CD23 are also demonstrated. A small percentage of T cells are also present in the gated population, as represented by the CD5-positive and bcl-2-positive/CD20-negative clusters.