8A21
Progressive focal atrophies
Description
Progressive cortical atrophies are neurodegenerative diseases with progressive impairment in a single cognitive domain secondary to circumscribed cerebral atrophy. [1]
Subcategories
8A21.0 Posterior cortical atrophy
Benson's syndrome or Posterior Cortical Atrophy (PCA) refers to a clinical syndrome in which higher order visual processing is disrupted owing to a neurodegenerative disorder. The patients present with progressive and severe visual agnosia (inability to recognize and identify familiar objects or persons) and apraxia (loss in the ability to execute or perform skilled familiar movements). [1]
References
- World Health Organization. International Classification of Diseases, 11th Revision, for Mortality and Morbidity Statistics (ICD-11 MMS), 2026-01 release. World Health Organization; 2026.
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