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Sinusitis Definition
Common names:
  • Acute Sinusitis
  • Chronic Sinusitis
  • Infected Sinuses
  • Sinus Infection
  • Sinusitis
A person with sinusitis has inflammation of the lining to the sinuses, usually caused by an infection. Images

Viruses cause most sinus infections. About 1 out 7 people develop sinusitis each year in the US. Allergies cause a longstanding form of sinusitis called chronic sinusitis.

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Last Updated: Oct 13, 2008  References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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