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  • Title: [Optic nerve schwannoma].
    Author: Leruez S, Gohier P, Menei P, Milea D.
    Journal: J Fr Ophtalmol; 2013 Mar; 36(3):e49-53. PubMed ID: 23352709.
    Abstract:
    OBJECTIVE: To report the occurrence of an orbital schwannoma probably arising from the optic nerve sheath. PATIENT AND METHOD: Clinical case report. RESULTS: A 65-year-old patient presented with a painless, progressive right proptosis over five years. Magnetic resonance imaging revealed an intraconal mass, radiographically consistent with a cavernous hemangioma. Surgical resection was performed and pathology disclosed a schwannoma affecting the optic nerve. The optic nerve, which does not contain Schwann cells, is exceptionally rarely affected by Schwannomas, which may arise from a few sympathetic nerve fibers or from a few ectopic cells, not normally present within the optic nerve. CONCLUSION: The radiologic appearance of the very rare optic nerve Schwannoma may be confused with a cavernous hemangioma, a more common tumor in this location.
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