🏥 USMLE Exam Prep

A patient presents with a lesion affecting the left dorsal column of the spinal cord at the level of T10. Which of the following sensory deficits would be expected?

A Loss of pain and temperature sensation on the left side below T10
B Loss of vibration and proprioception on the right side below T10
C Loss of vibration and proprioception on the left side below T10
D Loss of pain and temperature sensation on the right side below T10

✓ Correct Answer: Option C

The dorsal column (fasciculus gracilis and cuneatus) carries ipsilateral fine touch, vibration, and proprioception. A lesion on the left dorsal column at T10 would cause loss of vibration and proprioception on the left side below the lesion.

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