title: Optic nerve sheath meningioma.
mesh_terms: D003390:Cranial Nerve Neoplasms / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008579:Meningioma / Q000473:pathology / Q000601:surgery*; D009901:Optic Nerve Diseases / Q000473:pathology / Q000601:surgery*