title: [Impaired vision-dependent performance due to posterior cortical atrophy].
abstract: By causing problems in vision-dependent perception, posterior cortical atrophy (PCA) results in a significant impairment of functional ability. Most cases of PCA are atypical manifestations of Alzheimer's disease. PCA is a rare disease, and accurate data about its frequency are lacking. Disease symptoms begin typically under the age of 60 years. The prerequisites for a correct diagnosis are awareness and recognition of a special clinical picture and special investigations such as cerebrospinal fluid analysis and investigations of brain metabolism. A typical set of clinical characteristics and findings of special examinations in PCA are described.
authors.affiliation: Pohjois-Kymen sairaala.
authors.forename: Tero
authors.initials: T
authors.lastname: Tapiola
authors.forename: Pirjo
authors.initials: P
authors.lastname: Tuomainen
authors.forename: Matti
authors.initials: M
authors.lastname: Nikkanen
mesh_terms: D000544:Alzheimer Disease / Q000473:pathology; D001284:Atrophy / Q000473:pathology; D002540:Cerebral Cortex / Q000473:pathology*; D006801:Humans; D014786:Vision Disorders / Q000473:pathology*