title: Gadolinium enhancement of the leptomeninges caused by hydrocephalus: a potential mimic of leptomeningeal metastasis.
abstract: A patient had severe hydrocephalus and diffuse leptomeningeal enhancement on MR which mimicked leptomeningeal spread of a primary brain tumor. The leptomeningeal enhancement resolved completely after decompression of the hydrocephalus. Data suggest that the leptomeningeal enhancement is caused by vascular stasis induced by the hydrocephalus.
authors.affiliation: Department of Radiology, Duke University Medical Center, Durham, NC 27710.
authors.forename: D J
authors.initials: DJ
authors.lastname: Schumacher
authors.forename: R D
authors.initials: RD
authors.lastname: Tien
authors.forename: H
authors.initials: H
authors.lastname: Friedman
mesh_terms: D000328:Adult; D001099:Arachnoid / Q000473:pathology*; D001254:Astrocytoma / Q000175:diagnosis; D001932:Brain Neoplasms / Q000175:diagnosis; D003287:Contrast Media; D003937:Diagnosis, Differential; D004338:Drug Combinations; D005500:Follow-Up Studies; D005682:Gadolinium; D019786:Gadolinium DTPA; D006801:Humans; D006849:Hydrocephalus / Q000134:cerebrospinal fluid / Q000175:diagnosis* / Q000473:pathology; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D008536:Meglumine; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000556:secondary*; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives*; D010841:Pia Mater / Q000473:pathology*
chemical_list: D003287:Contrast Media; D004338:Drug Combinations; D009942:Organometallic Compounds; D008536:Meglumine; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA