Persistent lymphocytic leukemia (CLL) can be a lymphoid malignancy characterised via the proliferation and accumulation of mature CD5+ B cells within the blood, bone marrow and lymphoid tissues. The prognosis of CLL calls for the existence of ≥five x109/L mono - clonal B cells of usual phenotype within the blood. https://shulamitho999uqk7.wikifordummies.com/user