title: Diffusion-weighted MRI in familial Creutzfeldt-Jakob disease with the codon 200 mutation in the prion protein gene.
abstract: Magnetic resonance imaging (MRI) with diffusion-weighted imaging (DWI) has been reported to be a useful tool for early diagnosis of sporadic Creutzfeldt-Jakob disease (CJD). We report MRI findings with DWI, as well as with fluid-attenuated inversion recovery (FLAIR) and T1-weighted imaging (T1WI), in a case of familial CJD with a mutation at codon 200 of the prion protein gene. DWI in this patient showed high signal intensity in the basal ganglia and the cerebral cortex, similar to findings in sporadic CJD. In addition, T1WI showed areas of high signal intensity bilaterally in the globus pallidus. Despite the clinical diversity and atypical laboratory findings seen in familial CJD with the codon 200 mutation, these neuroimaging studies suggest that common regional distributions and a common pathogenesis might underlie the clinical progression both in sporadic CJD and in familial CJD with the codon 200 mutation in the prion protein gene. DWI abnormalities may be characteristic features that should be considered in the diagnosis of familial as well as of sporadic CJD.
authors.affiliation: Fifth Department of Internal Medicine, Fukuoka University School of Medicine, 7-45-1 Nanakuma, Fukuoka 814-0180, Japan. tsuboi@cis.fukuoka-u.ac.jp
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Tsuboi
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Baba
authors.forename: Katsumi
authors.initials: K
authors.lastname: Doh-ura
authors.forename: Akiko
authors.initials: A
authors.lastname: Imamura
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Fujioka
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Yamada
mesh_terms: D001921:Brain / Q000473:pathology*; D003062:Codon / Q000235:genetics; D007562:Creutzfeldt-Jakob Syndrome / Q000235:genetics* / Q000473:pathology*; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009154:Mutation / Q000235:genetics*; D011328:Prions / Q000235:genetics*
chemical_list: D003062:Codon; D011328:Prions