MedlinePlus Medical Encyclopedia: Leukemoid reaction

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Leukemoid reaction

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Illustrations	Definition

Illustrations

Antibodies

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A leukemoid reaction is an increase in white blood cells count similar to what occurs in persons with leukemia. However, the reaction is actually due to an infection or another disease and is not a sign of cancer.

Update Date: 2/6/2007

Updated by: William Matsui, MD, Assistant Professor of Oncology, Division of Hematologic Malignancies, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD. Review provided by VeriMed Healthcare Network.

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