title: Magnetic resonance imaging of a giant nonfunctioning retroperitoneal paraganglioma.
abstract: The authors describe the magnetic resonance imaging (MRI), computed tomographic, ultrasonographic and angiographic appearance of a giant nonfunctioning retroperitoneal paraganglioma. To their knowledge, the MRI appearance of a nonfunctioning paraganglioma has not been previously described. The MRI characteristics of the nonfunctioning tumour were similar to those of a functioning paraganglioma and included hyperintensity in T2-weighted images and intense enhancement after intravenous administration of contrast agent.
authors.affiliation: Department of Diagnostic Radiology and Nuclear Medicine, University Hospital, London, Ont.
authors.forename: C C
authors.initials: CC
authors.lastname: Romano
authors.forename: P L
authors.initials: PL
authors.lastname: Munk
authors.forename: A D
authors.initials: AD
authors.lastname: Vellet
authors.forename: D B
authors.initials: DB
authors.lastname: Bach
mesh_terms: D000293:Adolescent; D003287:Contrast Media; D005260:Female; D005682:Gadolinium; D006801:Humans; D008279:Magnetic Resonance Imaging; D010235:Paraganglioma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D003287:Contrast Media; D005682:Gadolinium