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USMLE · Question #445
USMLE Question #445: Real Exam Question with Answer & Explanation
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Question
A 67-year-old man is evaluated for persistent shooting pains, lower limb ataxia, and bladder dysfunction. Physical examination demonstrates small irregular pupils that constrict with accommodation but not in response to light. A VDRL test is positive. A CT scan of the spinal cord would most likely demonstrate atrophy of which of the following structures?
Options
- ADorsal column
- BVentral horn
- CDorsal horn
- DLateral column
- EVentral column
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