Graphical analysis of white blood cell count, absolute neutrophil count, platelets and hemoglobin at diagnosis, with escalating doses of ruxolitinib, and at the time of progression. Ruxolitinib resulted in a rapid and significant reduction in white blood cells (109/L), absolute neutrophil count (109/L) as well as improvement in platelets (109/L) and stabilization of hemoglobin (g/dL). At disease progression there was an increase in the white blood cells and neutrophils, mitigated by hydroxyurea as well as a decline in platelets and hemoglobin.