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Case Reports in Neurological Medicine
Volume 2016 (2016), Article ID 5419432, 3 pages
Case Report

Optic Nerve Sheath Meningioma Masquerading as Optic Neuritis

1Division of Neurology, Department of Medicine, Amiri Hospital, P.O. Box 1661, 13041 Sharq, Kuwait
2Neurology Clinic, Dasman Diabetes Institute, P.O. Box 1180, 15462 Dasman, Kuwait
3Al-Bahar Ophthalmology Center, Ibn Sina Hospital, P.O. Box 25427, 13115 Safat, Kuwait

Received 15 November 2015; Accepted 29 December 2015

Academic Editor: Norman S. Litofsky

Copyright © 2016 R. Alroughani and R. Behbehani. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Optic neuritis is a common presentation of demyelinating disorders such as multiple sclerosis. It typically presents with acute painful monocular vision loss, whereas chronic optic neuropathy can be caused by compressive lesions along the anterior visual pathway, genetic, toxic, or nutritional causes. We report an unusual presentation mimicking optic neuritis, which was subsequently diagnosed as optic nerve sheath meningioma (ONSM). Misinterpretation of white matter lesions on MRI of brain and the failure to image the optic nerves at the time of acute loss of vision led to the misdiagnosis of optic neuritis in this case. A comprehensive accurate history and ordering the appropriate imaging modality remain paramount in diagnosing progressive visual deterioration.