title: Multiple sclerosis masquerading as a mass lesion.
abstract: Six patients presenting with new neurological deficits underwent magnetic resonance imaging (MRI) that displayed mass lesions leading to diagnoses of tumor or abscess. Biopsy revealed demyelinating lesions.
authors.affiliation: Department of Neurology, University of Rochester Medical Center, New York.
authors.forename: D W
authors.initials: DW
authors.lastname: Giang
authors.forename: K R
authors.initials: KR
authors.lastname: Poduri
authors.forename: T A
authors.initials: TA
authors.lastname: Eskin
authors.forename: L M
authors.initials: LM
authors.lastname: Ketonen
authors.forename: P A
authors.initials: PA
authors.lastname: Friedman
authors.forename: D D
authors.initials: DD
authors.lastname: Wang
authors.forename: R M
authors.initials: RM
authors.lastname: Herndon
mesh_terms: D000293:Adolescent; D000328:Adult; D001707:Biopsy, Needle; D001921:Brain / Q000473:pathology; D001922:Brain Abscess / Q000175:diagnosis / Q000473:pathology; D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000473:pathology; D009186:Myelin Sheath / Q000473:pathology