title: Neuro-ophthalmologic dilemma: chronic optic neuritis?
abstract: A patient with an 8-month history of chronic progressive visual loss was referred to the Neuro-ophthalmology Consult Office of Washington University with a diagnosis of chronic optic neuritis. Previous diagnostic studies, including CAT scan, had been negative. Because chronic progressive visual loss is considered a hallmark of mass lesion, more vigorous investigation, including repeat CAT scans, was undertaken, leading to the diagnosis and removal of a 2 cm meningioma.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D008579:Meningioma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D009902:Optic Neuritis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014792:Visual Acuity