title: MRI of benign and malignant hepatic lobar atrophy.
abstract: We assessed the magnetic resonance imaging (MRI) features of hepatic lobar atrophy. Two of us reviewed MRIs of the liver in eight patients with benign or malignant forms of lobar atrophy. All atrophic lobes showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images compared with the remainder of the liver, and all showed greater enhancement compared to the nonatrophic lobe. Atrophic lobes have suggestive MRI findings and are similar for both benign and malignant etiologies.
authors.affiliation: Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104, USA.
authors.forename: E S
authors.initials: ES
authors.lastname: Siegelman
authors.forename: E K
authors.initials: EK
authors.lastname: Outwater
authors.forename: C W
authors.initials: CW
authors.lastname: Piccoli
authors.forename: C E
authors.initials: CE
authors.lastname: Chernesky
authors.forename: D G
authors.initials: DG
authors.lastname: Mitchell
mesh_terms: D000328:Adult; D000368:Aged; D001284:Atrophy / Q000175:diagnosis / Q000209:etiology; D001650:Bile Duct Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D001653:Bile Ducts, Intrahepatic / Q000473:pathology / Q000601:surgery; D001706:Biopsy; D018281:Cholangiocarcinoma / Q000150:complications / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008099:Liver / Q000473:pathology* / Q000601:surgery; D008107:Liver Diseases / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged