title: Language impairment: stepwise or slowly progressive?
abstract: MRI showed ischemic lesions of the left hemisphere in a patient with a worsening language disturbance that by history could be caused either by ischemia or by a focal degenerative brain disorder. A positron emission tomography study indicated the presence of a degenerative disorder, the most common cause of which is tau-positive pathology.
authors.affiliation: Department of Neurology and Neurosurgery, University of Navarra Medical School, Clínica Universitaria de Navarra, Center for Applied Biomedical Research, Pamplona, Spain.
authors.forename: Joseph C
authors.initials: JC
authors.lastname: Masdeu
mesh_terms: D000369:Aged, 80 and over; D018888:Aphasia, Primary Progressive / Q000209:etiology / Q000378:metabolism / Q000473:pathology*; D002545:Brain Ischemia / Q000150:complications / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D049268:Positron-Emission Tomography; D013575:Syncope / Q000150:complications; D016875:tau Proteins / Q000378:metabolism*
chemical_list: D016875:tau Proteins