MedlinePlus Medical Encyclopedia: Swollen lymph nodes under arm

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Swollen lymph nodes under arm

Lymph nodes can become swollen as an immune response to local infection.

Update Date: 7/17/2007

Updated by: Robert Hurd, MD, Professor of Endocrinology, Department of Biology, Xavier University, Cincinnati, OH, and physician in the Primary Care Clinic, Cincinnati Veterans Administration Medical Center, Cincinnati, Ohio. Review provided by VeriMed Healthcare Network.

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