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Anatomical variation of the extracranial course of the optic nerve in the floor of the sphenoid sinus: first reported case
Published online by Cambridge University Press: 24 May 2013
Abstract
We report a unique case of anatomical variation of the extracranial course of the optic nerve running in the floor of the sphenoid sinus.
Clinical and radiological findings are presented.
A 39-year-old woman with Turner syndrome presented with severe headache associated with visual disturbances. Magnetic resonance imaging revealed a mass presumed to be a sella meningioma. Computed tomography of the paranasal sinuses was undertaken to help plan surgical removal via an endoscopic trans-sphenoidal approach; this scan revealed an atypical extracranial course of the optic nerve, running in the floor of the sphenoid sinus.
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- Copyright © JLO (1984) Limited 2013
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