title: Gadolinium-DTPA enhancement of an optic nerve and chiasmal meningioma.
abstract: The advent of gadolinium-diethylenetriaminepentaacetic acid (Gd-DTPA), a magnetic resonance imaging (MRI) contrast agent, has significantly improved MRI's diagnostic accuracy by enabling the physician to separate magnetically similar but histologically different tissues. A patient with optic nerve meningioma, whose tumor was clearly demonstrated on Gd-DTPA-enhanced MRI but did not appear on noncontrast MRI, is described. The usefulness of contrast agents in MRI diagnosis of neuro-ophthalmologic disorders and ophthalmic tumors is emphasized through this case report.
authors.affiliation: Department of Ophthalmology, Tulane University School of Medicine, New Orleans, Louisiana 70112-2699.
authors.forename: B G
authors.initials: BG
authors.lastname: Haik
authors.forename: R
authors.initials: R
authors.lastname: Zimmerman
authors.forename: L
authors.initials: L
authors.lastname: Saint Louis
mesh_terms: D000368:Aged; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis*; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008579:Meningioma / Q000175:diagnosis*; D009901:Optic Nerve Diseases / Q000175:diagnosis*; D009942:Organometallic Compounds; D004369:Pentetic Acid; D014057:Tomography, X-Ray Computed; D014792:Visual Acuity
chemical_list: D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA