Case 5: Question 1

A 35-year-old woman complained that she had no feeling in her hands. She had burned her right hand on a hot pan but had not felt it. She said the feeling of numbness in her hands had a gradual onset, starting about 6 months previously. Examination indicated the following:

  • normal strength and reflexes
  • normal proprioception and vibration sense
  • no response to pinprick and no temperature sensation in the thumb, index finger and third finger of both hands

Question 1: Which of the major long tracts are involved? 

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