title: [Diagnosis contribution of biomarkers in Alzheimer disease: A case of frontotemporal dementia].
abstract: BACKGROUND
  Cerebrospinal fluid biomarkers are a fundamental contribution for the diagnosis of Alzheimer disease, in particular for young people.
  
  
  METHODS
  We report a case of Alzheimer disease of a 51-years old man whose clinical presentation corresponded to frontotemporal behavioural criteria. The clinical evaluation noticed some troubles in verbal memory. Only the CSF biomarkers confirmed the diagnosis.
  
  
  CONCLUSIONS
  There are different phenotypes of presenile Alzheimer disease and among them we note frontotemporal dementia. It is very important to identify them to introduce a specific treatment.
authors.affiliation: Unité de neuropsychologie-CM2R, CHU de Sainte-Étienne-hôpital Nord, avenue Albert-Raymond, 42055 Saint-Étienne cedex 02, France. aurel.richard@gmail.com
authors.forename: A
authors.initials: A
authors.lastname: Richard-Mornas
authors.forename: S
authors.initials: S
authors.lastname: Dirson
authors.forename: A
authors.initials: A
authors.lastname: Perret-Liaudet
authors.forename: M
authors.initials: M
authors.lastname: Decousus
authors.forename: C
authors.initials: C
authors.lastname: Thomas-Antérion
mesh_terms: D000544:Alzheimer Disease / Q000134:cerebrospinal fluid / Q000175:diagnosis* / Q000503:physiopathology; D015415:Biomarkers / Q000134:cerebrospinal fluid; D002560:Cerebrovascular Circulation / Q000502:physiology; D004569:Electroencephalography; D057180:Frontotemporal Dementia / Q000134:cerebrospinal fluid / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010296:Parietal Lobe / Q000098:blood supply / Q000503:physiopathology
chemical_list: D015415:Biomarkers