A 60-year-old man was admitted to hospital because of fatigue, weight loss, and abdominal discomfort for a period two months. Physical examination showed mild splenomegaly but no lymphadenopathy and hepatomegaly. Peripheral examination revealed a total leukocyte count of 51,000/μ with 52% segmented neutrophils, 9% bands, 2% metamyelocytes, 7% myelocytes, 2% promyelocytes, 1% blasts, 5% lymphocytes, 2% monocytes, 5% eosinophils, and 15% basophils (Fig. 1.1). His hemoglobin was 11 g/dL, hematocrit 34%, and platelets 950,000/μ.


Chronic Myeloid Leukemia Chronic Myelogenous Leukemia Essential Thrombocythemia Hematologic Neoplasm Blast Phase 
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