Diseases

Pure Alexia

Loss of the power to comprehend written materials despite preservation of the ability to write (i.e., alexia without agraphia). This condition is generally attributed to lesions that disconnect the visual cortex of the non-dominant hemisphere from language centers in the dominant hemisphere. This may occur when a dominant visual cortex injury is combined with underlying white matter lesions that involve crossing fibers from the occipital lobe of the opposite hemisphere. (From Adams et al., Principles of Neurology, 6th ed, p483)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Loss of the power to comprehend written materials despite preservation of the ability to write (i.e., alexia without agraphia). This condition is generally attributed to lesions that disconnect the visual cortex of the non-dominant hemisphere from language centers in the dominant hemisphere. This may occur when a dominant visual cortex injury is combined with underlying white matter lesions that involve crossing fibers from the occipital lobe of the opposite hemisphere. (From Adams et al., Principles of Neurology, 6th ed, p483)

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

23 entry terms
  • Alexia Syndrome Without Agraphia
  • Alexia Without Agraphia
  • Alexia, Pure
  • Pure Alexia Without Agraphia
  • Pure Word Blindness
  • Visual Verbal Agnosia
  • Agnosia, Visual Verbal
  • Agnosias, Visual Verbal
  • Agraphia, Alexia Without
  • Agraphias, Alexia Without
  • Alexia Without Agraphias
  • Alexias, Pure
  • Blindness, Pure Word
  • Blindnesses, Pure Word
  • Pure Alexias
  • Pure Word Blindnesses
  • Verbal Agnosia, Visual
  • Verbal Agnosias, Visual
  • Visual Verbal Agnosias
  • Without Agraphia, Alexia
  • Without Agraphias, Alexia
  • Word Blindness, Pure
  • Word Blindnesses, Pure

MeSH Record

Aspects Covered

31 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, rehabilitation, surgery, therapy, urine, virology.

MeSH Record

Indexing Annotation

ALEXIA see DYSLEXIA is also available

MeSH Record

History Note

2000

MeSH Record

Previous Indexing

  • Dyslexia, Acquired (1966-1999)

MeSH Hierarchy

Tree Numbers

  1. C10w.597.606.150w.500w.300w.200.100w
  2. C23.888w.592.604.150w.500w.300w.200.100w
  3. F03w.615w.700.500w

AMA Style

References

  1. National Library of Medicine. Pure Alexia. Medical Subject Headings (MeSH). 2026. Unique ID D020237. http://id.nlm.nih.gov/mesh/2026/D020237
  2. Pure Alexia. In: Wikipedia. https://en.wikipedia.org/wiki/Pure_alexia
  3. Pure Alexia. In: Wikidata. https://www.wikidata.org/wiki/Q7261142