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Lymph tissue in the head and neck.

  

Lymph nodes play an important part in the body's defense against infection. Swelling might occur even if the infection is trivial or not apparent.

Lymph tissue in the head and neck.
 
Review Date: 1/5/2007
Reviewd By: Kevin Fung, MD, FRCS(C), Department of Otolaryngology, University of Western Ontario, London, Ontario, Canada. Review provided by VeriMed Healthcare Network.
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