Persistent lymphocytic leukemia (CLL) is often a lymphoid malignancy characterised because of the proliferation and accumulation of experienced CD5+ B cells within the blood, bone marrow and lymphoid tissues. The prognosis of CLL requires the existence of ≥five x109/L mono - clonal B cells of normal phenotype inside the blood. https://hughr530iqx7.sasugawiki.com/user