USMLE Exam Prep

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Which of the following cardiovascular disorders is most likely associated with abnormal pupillary responses (Argyll Robertson pupil)?
  1. Aortic regurgitation
  2. Coarctation of the aorta
  3. Thoracic aortic aneurysm
  4. Myocarditis
Explanation
Answer: C - The Argyll Robertson pupil (a pupil that constricts with accommodation but not in response to light) is characteristic of central nervous system syphilis that often results in thoracic aortic aneurysm.
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