Ethmoiditis is an infection of the ethmoidal cells in the sinuses. These are the air-filled spaces behind the nose and between the eyes.
Ethmoiditis is a type of sinusitis.
Bacteria cause most ethmoid sinus infections. Some types of fungus and viruses can also be involved.
Symptoms usually include a headache between the eyes and a runny nose.
Symptoms of more serious infections can include:
- Vision loss
- Double vision
- Redness or bulging of the eyes
Benninger MS, Stokken JK. Acute rhinosinusitis: pathogenesis, treatment, and complications. In: Flint PW, Haughey BH, Lund V, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 6th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 46.
Borish L. Allergic rhinitis and chronic sinusitis. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 251.
Review Date 8/1/2017
Updated by: Ashutosh Kacker, MD, FACS, Professor of Clinical Otolaryngology, Weill Cornell Medical College, and Attending Otolaryngologist, New York-Presbyterian Hospital, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.