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Year : 2021  |  Volume : 69  |  Issue : 4  |  Page : 1125--1126

Optic Neuropathy Caused by an Ethmoid Sinus Mucocele Encasing the Optic Nerve

Kwang Soo Lee1, Dae Woong Bae1, Jinhee Jang2, Woojun Kim1,  
1 Department of Neurology, The Catholic University of Korea, College of Medicine, Seoul, South Korea
2 Department of Radiology, The Catholic University of Korea, College of Medicine, Seoul, South Korea

Correspondence Address:
Woojun Kim
Department of Neurology, The Catholic University of Korea, College of Medicine, 222 Banpo-daero, Seocho-gu
South Korea




How to cite this article:
Lee KS, Bae DW, Jang J, Kim W. Optic Neuropathy Caused by an Ethmoid Sinus Mucocele Encasing the Optic Nerve.Neurol India 2021;69:1125-1126


How to cite this URL:
Lee KS, Bae DW, Jang J, Kim W. Optic Neuropathy Caused by an Ethmoid Sinus Mucocele Encasing the Optic Nerve. Neurol India [serial online] 2021 [cited 2021 Dec 3 ];69:1125-1126
Available from: https://www.neurologyindia.com/text.asp?2021/69/4/1125/325346


Full Text



A 60-year-old woman with a history of hypertension and hyperlipidemia presented with decreased visual acuity and pain in the right eye that was aggravated for two days and associated with headache in the right frontal area. She had no recent history of upper respiratory infection, sinusitis, or trauma. On examination, the visual acuity of her right eye was at the level of light perception, which was shown on Humphrey perimetry [Figure 1]a. Pupils were round and isocoric; however, the light reflex was sluggish on the right side with a relative afferent pupillary defect. Eye movements were full in all directions. Fundus examination revealed normal discs in both eyes. No other systemic or neurological abnormalities were found. Magnetic resonance imaging showed a cystic mass in the right posterior ethmoid sinus, suggesting a mucocele encasing the right optic nerve [Figure 1]b, [Figure 1]c, [Figure 1]d. Under a diagnosis of compressive optic neuropathy associated with the ethmoid sinus mucocele, an endoscopic ethmoidectomy was performed [Figure 1]e, and the patient's symptoms completely resolved after two weeks.{Figure 1}

Differential diagnosis of acute visual loss includes various diseases, including optic neuritis, arteric/nonarteric ischemic optic neuropathy, and compressive optic neuropathy, as in this case.[1] Her clinical features and examination findings correlated with retrobulbar optic neuropathy. Mucoceles causing compressive optic neuropathy occupying the sphenoidal sinus or concurrently sphenoidal and ethmoidal sinuses have been reported.[2] However, to our knowledge, this is the first report describing a mucocele located in the ethmoidal sinus causing compressive optic neuropathy.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

References

1Prasad S, Galetta SL. Approach to the patient with acute monocular visual loss. Neurol Clin Pract 2012;2:14-23.
2Li E, Howard MA, Vining EM, Becker RD, Silbert J, Lesser RL. Visual prognosis in compressive optic neuropathy secondary to sphenoid sinus mucocele: A systemic review. Orbit 2018;37:280-6.