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Ethmoiditis
Definition:

Ethmoiditis is an inflammation of the ethmoidal cells in the sinuses, the air-filled cavities behind the nose and between the eyes.

See also: Sinusitis
Causes, incidence, and risk factors:
Ethmoid sinus infections are most commonly caused by bacteria, although fungi and viruses can play a role.
Symptoms:

Symptoms usually include a headache between the eyes and a runny nose.

Symptoms of more serious infections can include loss of vision, double vision, or redness or bulging of the eyes (orbital cellulitis).
References:

Ferguson BJ, Johnson JT. Infectious causes of rhinosinusitis. In: Cummings CW, Flint PW, Haughey BH, Robbins KT, Thomas JR, eds. Otolaryngology: Head & Neck Surgery. 4th ed. Philadelphia, Pa: Mosby Elsevier; 2005:chap 50.

Brook K. Acute and chronic bacterial sinusitis. Infect Dis Clin North Am. 2007;21:427-448, vii.
Review Date: 8/3/2011
Reviewed By: Alan Lipkin, M.D., private practice specializing in otolaryngology, Denver, CO. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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