title: [Palinopsia (visual preservation) and cerebral polyopia--clinical analysis and computed tomographic findings].
abstract: The positive visual phenomena of palinopsia and cerebral diplopia/polyopia have only rarely been recorded. The complex phenomenology (visual/oculomotor) is described based on two cases with right occipital infarcts and a review of the literature. In each case demonstrated CT revealed a small area of decreased density confined to the border region of the right area striata causing homonymous field defects. The phenomena are discussed in the light of what is known about visual after-images and hallucinations. The underlying neural mechanisms are still unknown; a defective cortical visual information processing is suggested.
mesh_terms: D000368:Aged; D002544:Cerebral Infarction / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014786:Vision Disorders / Q000175:diagnosis* / Q000209:etiology; D014794:Visual Fields
vernacular_title: Palinopsie (visuelle Perservation) und zerebrale Polyopie--klinische Analyse und computertomographische Befunde.