Figure 1. Cytogram from the peripheral blood of an AML patient with an explosive increase in the WBC count. In the peroxidase channel, the arrow marks the LUC (large unclassified cells) area that has the majority of the cells. The WBC count was measured at 200,000/µL.
Figure 2. The basophil channel shows a marked shift toward mononuclear cells. Blast cells appear at the extreme left of the mononuclear cluster (arrow), and an increase in the cells in this area triggers a blast flag on the instrument.
Figure 4. A higher-power view confirms the presence of blasts and immature myeloid cells. The cells are deeply basophilic with a high nuclear to cytoplasmic ratio.
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