Representative example of the light scatter and immunophenotypic differences between BMMC (black dots) from healthy controls (left panel) and patients suffering from indolent SMCD. As can be seen, CD2 (E and F), CD25 (G and H), and CD35 molecules were positive in SMCD patients, but negative in normal controls. The events represented in each dot plot correspond to the CD117⁺gated cells present in a total of 600,000 events analyzed.