What does this mean The lymphocyte gate consists of small, hypogranular, CD45 positive cells, which comprise 4% of the total events. The majority are T-lymphocytes (CD3,CD5,CD7) with a normal CD4:CD8 ratio of 2.1. B-lymphocytes (CD19) with a normal kappa:lambda ratio of 1.2 are 4% of the gated population (0.2% of the total cells). No increase in B-cells co-expressing CD5 or CD10 is noted. The blast gate consists of intermediate to large, CD45 dim hypogranular cells. Of these, 0.3% of the total cells are myeloid blasts positive for CD117, myeloid antigen CD33, and hematopoietic progenitor cell antigen (CD34). They are negative for T-lymphocyte markers (CD3,CD5,CD7), B-lymphocyte markers (CD19, kappa, lambda), and CD10. Additionally, a small population of CD10/CD19 positive cells (0.5% of the total events) is seen, in keeping with hematogones. These findings show a mixed population of T- and polyclonal B-lymphocytes with no monoclonal B-lymphoid population identified. There is no increase in blasts and no atypical antigen expression is noted on the myeloid cells.