Fig. 3.
Flow cytometry histograms of a marrow specimen with increased hematogones.
The histograms illustrate the normal pattern of maturation of B-lymphocyte precursors (hematogones) with the 4-color antibody combination of CD10, CD20, CD22, and CD34. Violet indicates early-stage hematogones; green, intermediate and late-stage hematogones; and blue, mature B cells.