title: Multifocal inflammatory pseudotumor of the liver: dynamic gadolinium-enhanced, ferumoxides-enhanced, and mangafodipir trisodium-enhanced MR imaging findings.
abstract: The MRI characteristics of a multifocal inflammatory pseudotumor of the liver are described. Emphasis is placed on the appearances following intravenous administration of both non-specific and liver-specific MR contrast agents. On post-gadolinium gradient-echo (GE) images an early, intense, and peripheral enhancement was followed by a homogeneous, complete, and persistent enhancement. Lesions showed no uptake following administration of ferumoxides particles nor mangafodipir trisodium, respectively. During follow-up, a peripheral hyperintense rim appeared on precontrast T1-weighted images, a feature not previously described.
authors.affiliation: Department of Radiology, Brigham and Women's Hospital, Harvard University Medical School, Boston, MA 02115, USA. kmortele@partners.org
authors.forename: Koenraad J
authors.initials: KJ
authors.lastname: Mortelé
authors.forename: Walter
authors.initials: W
authors.lastname: Wiesner
authors.forename: Bernard
authors.initials: B
authors.lastname: de Hemptinne
authors.forename: Andre
authors.initials: A
authors.lastname: Elewaut
authors.forename: Marleen
authors.initials: M
authors.lastname: Praet
authors.forename: Pablo R
authors.initials: PR
authors.lastname: Ros
mesh_terms: D000328:Adult; D003287:Contrast Media; D003911:Dextrans; D004492:Edetic Acid / Q000031:analogs & derivatives*; D005260:Female; D052203:Ferrosoferric Oxide; D005682:Gadolinium; D006104:Granuloma, Plasma Cell / Q000473:pathology*; D006801:Humans; D007501:Iron; D008099:Liver / Q000473:pathology*; D008107:Liver Diseases / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D058185:Magnetite Nanoparticles; D008345:Manganese; D009942:Organometallic Compounds; D010087:Oxides; D011732:Pyridoxal Phosphate / Q000031:analogs & derivatives*; D013535:Suspensions
chemical_list: D003287:Contrast Media; D003911:Dextrans; D058185:Magnetite Nanoparticles; D009942:Organometallic Compounds; D010087:Oxides; D013535:Suspensions; C041365:gadolinium EDTA; D008345:Manganese; D011732:Pyridoxal Phosphate; D004492:Edetic Acid; D005682:Gadolinium; D007501:Iron; C065507:ferumoxides; C060076:N,N'-bis(pyridoxal-5-phosphate)ethylenediamine-N,N'-diacetic acid; D052203:Ferrosoferric Oxide