Table 4:
Diagnostic Criteria for Chronic Eosinophilic Leukemia
  • Persistent eosinophilia >1.5 x 109/L in blood, increased bone marrow eosinophils
  • >5% but <19% myeloblasts in the bone marrow or >2% in the peripheral blood
  • Clonality of myeloid cells
  • No reactive eosinophilia due to allergy, parasitic, infectious, pulmonary, or collagen vascular disease
  • No reactive eosinophilia due to other malignancies:
  • T-cell lymphomas
  • Acute lymphoblastic leukemia/lymphoma
  • Other myeloproliferative diseases
  • Acute myeloid leukemia
    • including inv(16), t(16;16)
  • No T-cell population with abnormal cytokine production and aberrant phenotype
CML=Chronic myelogenous leukemia
Adapted with permission from IARC Press (Reference 1).
Copyright 2003 The Cleveland Clinic Foundation

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