title: Lesson of the week: a new cause of treatable dementia.
abstract: METHODS
  A 69-year-old married British man presented with 4 months of falls and confusion. HIV antibody test, performed after exclusion of other diagnoses, was positive. Institution of triple antiretroviral therapy resulted in an almost complete recovery.
  
  
  CONCLUSIONS
  HIV infection is now far more common than syphilis. It may be highly amenable to treatment and needs to be considered in the differential diagnosis of the older person with dementia.
authors.affiliation: Department of Infectious Diseases, North Manchester General Hospital, Delaunays Road, Crumpsall, Manchester M8 5RB, UK. mparsonage@btopenworld.com
authors.forename: Mirella Jane
authors.initials: MJ
authors.lastname: Parsonage
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Hart
authors.forename: Edmund G L
authors.initials: EG
authors.lastname: Wilkins
authors.forename: Paul Richard
authors.initials: PR
authors.lastname: Talbot
mesh_terms: D000368:Aged; D023241:Antiretroviral Therapy, Highly Active; D003704:Dementia / Q000188:drug therapy / Q000209:etiology*; D015658:HIV Infections / Q000150:complications* / Q000188:drug therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D016896:Treatment Outcome