title: A 54-year-old man with slowness of movement and confusion.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Geschwind
authors.forename: Keith A
authors.initials: KA
authors.lastname: Josephs
authors.forename: Joseph E
authors.initials: JE
authors.lastname: Parisi
authors.forename: B Mark
authors.initials: BM
authors.lastname: Keegan
mesh_terms: D001284:Atrophy / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D001921:Brain / Q000473:pathology / Q000503:physiopathology; D003072:Cognition Disorders / Q000209:etiology / Q000503:physiopathology; D003221:Confusion / Q000209:etiology* / Q000503:physiopathology; D007562:Creutzfeldt-Jakob Syndrome / Q000175:diagnosis* / Q000503:physiopathology* / Q000523:psychology; D003937:Diagnosis, Differential; D018450:Disease Progression; D017809:Fatal Outcome; D006801:Humans; D018476:Hypokinesia / Q000209:etiology* / Q000503:physiopathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008569:Memory Disorders / Q000209:etiology / Q000503:physiopathology; D008875:Middle Aged; D009434:Neural Pathways / Q000473:pathology / Q000503:physiopathology; D009460:Neurologic Examination; D010195:Pancreatitis / Q000150:complications; D020734:Parkinsonian Disorders / Q000209:etiology* / Q000503:physiopathology; D010468:Perceptual Disorders / Q000209:etiology* / Q000503:physiopathology; D011328:Prions / Q000032:analysis / Q000235:genetics; D014786:Vision Disorders / Q000209:etiology / Q000503:physiopathology
chemical_list: D011328:Prions