Which condition is defined by reading impairment with writing preserved and is associated with angular gyrus involvement?

• A. Alexia Without Agraphia
• B. Acquired Alexia
• C. Alexia
• D. Wernicke's Aphasia

Answer: (C)

Reading impairment after brain injury is called alexia. When writing is preserved, this is the classic presentation of a pure form of alexia (often described as alexia without agraphia). The angular gyrus is a region linked more with alexia that co-occurs with writing problems (alexia with agraphia) or Gerstmann-type patterns, so if the writing is truly preserved, the broad term still fits best: alexia. Wernicke's aphasia would involve impaired comprehension and fluent, nonsensical speech rather than a pure reading deficit. Acquired alexia is a general label for reading loss after injury, but the most direct, encompassing diagnosis given a reading deficit with intact writing is alexia.