Alexia can develop after a cerebral injury that damages a susceptible site.
Alexia is an inability to read ("word blind"). Other aspects of language may be preserved. It may occur together with Wernicke's aphasia.
Pure alexia (alexia without agraphia) can occur after a lesion involving the corpus callosum or splenium that interferes with the transfer of information from the right occipital cortex to speech centers in the left hemisphere.
Alexia with agraphia is associated with lesions of the angular gyrus of the left parietal lobe.
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