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
Ethmoid sinus infections are most commonly caused by bacteria, although fungi and viruses can play a role.
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).
Benninger MS. The pathogenesis of rhinosinusitis. In: Flint PW, Haughey BH, Lund VJ, Niparko JK, Richardson MA, Robbins KT, Thomas JR, eds.Cummings Otolaryngology: Head & Neck Surgery
Borish L. Allergic rhinitis and sinusitis. In: Goldman L, Schafer AI, eds.Goldman's Cecil Medicine
Update Date 8/11/2013
Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.