Preferred Label : alexia, pure;
MeSH definition : 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 synonym : pure alexia without agraphia; pure alexias; pure word blindness; pure word blindnesses; verbal agnosias, visual; word blindnesses, pure; agnosia, visual verbal; agnosias, visual verbal; agraphia, alexia without; agraphias, alexia without; alexia without agraphia; alexia without agraphias; alexias, pure; blindness, pure word; blindnesses, pure word; visual verbal agnosias; alexia syndrome without agraphia; without agraphia, alexia; without agraphias, alexia; pure alexia; word blindness, pure; visual verbal agnosia; verbal agnosia, visual;
MeSH annotation : ALEXIA see DYSLEXIA is also available;
Origin ID : D020237;
UMLS CUI : C0751840;
Allowable qualifiers
- Automatic exact mappings (from CISMeF team)
- Record concept(s)
- See also inter- (CISMeF)
- Semantic type(s)
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)
