J Korean Neurol Assoc.  2009 Nov;27(4):421-423.

Acute Optic Neuropathy due to Compression by Posterior Ethomoidal Cell (an Onodi cell) Mucocele

Affiliations
  • 1Department of Neurology, Chosun University College of Medicine, Gwangju, Korea. shahn@chosun.ac.kr
  • 2Department of Otolaryngology, Chosun University College of Medicine, Gwangju, Korea.
  • 3Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Korea.

Abstract

Acute optic neuropathy occurs commonly as a result of ischemia and inflammation, but paranasal sinus disease without infection is generally dismissed. We report a rare case of acute optic neuropathy caused by compression of a mucocele in an Onodi cell, which is an uncommon anatomical variation of the ethmoid sinus. The mucocele was confirmed by imaging and endoscopic sinus surgery. An Onodi-cell lesion should be considered in the differential diagnosis of acute optic neuropathy.

Keyword

Optic neuropathy; Posterior ethmoid sinus; Mucocele
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