title: A 'possible' optic nerve meningioma.
abstract: A 58-year-old woman had progressive visual failure in her left eye over a two-year period. Radiological investigation, including tomography and computerized tomographic (CT) scanning, did not result in a diagnosis. When no useful vision remained, surgical exploration disclosed an optic sheath meningioma. Complete recovery followed removal of the tumor.
mesh_terms: D003390:Cranial Nerve Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D008579:Meningioma / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D009901:Optic Nerve Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D014786:Vision Disorders / Q000601:surgery*