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Case Report

Case report of concomitant intermittent exotropia as a rare presentation in a child with temporal arachnoid cyst

Authors:

Yen Harn Yew ,

Department of Ophthalmology, University of Malaya Medical Center, Kuala Lumpur, Malaysia
About Yen Harn
MD (Unimas)
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Angela Loo,

Department of Ophthalmology, University of Malaya Medical Center, Kuala Lumpur, Malaysia
About Angela

MBBS (Australia) MRCOphth (UK) FRCS (Ireland) FCOpth (HK) FHKAM (Ophthalmology) AM (MAL)

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Visvaraja Subrayan

Department of Ophthalmology, University of Malaya Medical Center, Kuala Lumpur, Malaysia
About Visvaraja
FRCS (E) FRCOphth (UK) AM (MAL)
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Abstract

Aim: To report a case of arachnoid cyst incidentally detected in a child who initially presented with concomitant intermittent right exotropia that progressed to incomitancy.

Methods: This is a case report of a 3-year-old boy with concomitant intermittent right exotropia who was initially listed for strabismus surgery. However, 2 months later, prior to the operation, he was found to have developed constant V-pattern right exotropia and bilateral inferior oblique overactions.

Results: Urgent CT and MRI revealed the incidental finding of a temporal arachnoid cyst measuring 2.8 cm × 3.8 cm × 3.2 cm displacing the temporal lobe posteriorly. Urgent marsupialisation of the cyst was done with subsequent improvement to the strabismus.

Conclusion: Arachnoid cysts are developmental anomalies that occasionally cause sudden neurological deficit due to cyst expansion or bleeding. Although concomitant exotropia is generally benign in a child, intracranial lesions need to be investigated if the child shows progressive worsening of strabismus, especially with the recent onset of incomitance.

DOI: https://doi.org/10.22599/bioj.44
How to Cite: Yew, Y.H., Loo, A. and Subrayan, V., 2011. Case report of concomitant intermittent exotropia as a rare presentation in a child with temporal arachnoid cyst. British and Irish Orthoptic Journal, 8, pp.62–65. DOI: http://doi.org/10.22599/bioj.44
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Published on 01 Aug 2011.
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