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Posterior cortical atrophy. Neuropathologic correlations

J Victoroff1, G W Ross, D F Benson

  • 1Department of Neurology, UCLA School of Medicine.

Archives of Neurology
|March 1, 1994
PubMed
Summary
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Posterior cortical atrophy (PCA) presents with visual issues but has varied causes. This study found PCA is a syndrome with diverse underlying neuropathological conditions, not a single disease.

Area of Science:

  • Neurology
  • Neuroscience
  • Pathology

Background:

  • Posterior cortical atrophy (PCA) is a clinical syndrome characterized by progressive dementia with a predominance of visual and visuospatial dysfunction, linked to posterior parieto-occipital cortex impairment.
  • The clinical presentation of PCA suggests a unified etiology, but its underlying neuropathological basis remains incompletely understood.

Observation:

  • This study investigated three patients with PCA who presented with initial higher visual dysfunction.
  • Neuropathological examination was performed following the patients' progression to definitive diagnosis.

Findings:

  • The neuropathological examination revealed three distinct underlying conditions: subcortical gliosis, Alzheimer's disease, and Creutzfeldt-Jakob disease.
  • These findings demonstrate that PCA is not associated with a single, uniform neuropathological entity.

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Implications:

  • Posterior cortical atrophy represents a clinically homogeneous syndrome but is pathologically heterogeneous.
  • This heterogeneity underscores the need for diverse diagnostic and therapeutic approaches in managing patients presenting with PCA.