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  • Title: Anatomical variation of the extracranial course of the optic nerve in the floor of the sphenoid sinus: first reported case.
    Author: Girguis-Bucher A, Schlegel-Wagner C.
    Journal: J Laryngol Otol; 2013 Aug; 127(8):822-4. PubMed ID: 23701668.
    Abstract:
    OBJECTIVE: We report a unique case of anatomical variation of the extracranial course of the optic nerve running in the floor of the sphenoid sinus. METHOD: Clinical and radiological findings are presented. RESULTS: 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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