title: Sequential MR studies of a patient with white matter disease presenting psychotic symptoms: ADEM versus single-episode MS.
abstract: Acute disseminated encephalomyelitis (ADEM) and multiple sclerosis (MS) are both demyelinating white matter disorders. It is difficult to differentiate ADEM from single episode MS because of the similar clinical presentation, cerebral spinal fluid (CSF) analysis, histological finding and magnetic resonance image (MRI) appearance. We report an ADEM case with unusual clinical presentations of predominant psychiatric symptoms, and relatively long disease course. Initially, we were not able to distinguish it from single episode MS. By means of sequential MR images followed up 2 years and spectroscopy studies, and the dramatic clinical improvement after corticosteroid therapy, ADEM was diagnosed as the disease entity of this patient. In this case report we will present the MR findings of this patient and discuss the differentiation between the ADEM and MS.
authors.affiliation: Department of Radiology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shih-Pai Rd., Taipei, Taiwan. wc_lin@vghtpe.gov.tw
authors.forename: W C
authors.initials: WC
authors.lastname: Lin
authors.forename: J F
authors.initials: JF
authors.lastname: Lirng
authors.forename: F C
authors.initials: FC
authors.lastname: Chang
authors.forename: S S
authors.initials: SS
authors.lastname: Chen
authors.forename: C B
authors.initials: CB
authors.lastname: Luo
authors.forename: M M
authors.initials: MM
authors.lastname: Teng
authors.forename: J H
authors.initials: JH
authors.lastname: Chiang
authors.forename: C Y
authors.initials: CY
authors.lastname: Chang
mesh_terms: D000328:Adult; D004673:Encephalomyelitis, Acute Disseminated / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D001523:Mental Disorders / Q000175:diagnosis*; D009103:Multiple Sclerosis / Q000175:diagnosis*