The bone marrow aspirate showed a homogenous infiltrate of small- to medium-sized cells with variable amounts of cytoplasm, regular nuclear borders, and occasional cells with a single large nucleolus. Rare myeloid and erythroid precursors are present. On flow cytometric analysis these cells were κ light chain restricted, CD19, CD20 and CD10 positive. On cytogentic analysis a t(14;18) translocation and an extra chromosome 8 were detected. These findings were consistent with a diagnosis of follicular lymphoma with peripheralization.