A 46-Year-Old Man Comes to the Office with Left Upper

A 46-year-old man comes to the office with left upper limb weakness and numbness.  He has had chronic neck pain since being involved in a motor vehicle collision 4 years ago.  He has no other medical problems.  Neurological evaluation reveals that the tendon reflex shown in the image below is absent.  Reflexes in the right upper extremity and both lower extremities are normal. Imaging studies reveal degenerative changes in the spine causing mild spinal cord compression.  Which of the following spinal segments is most likely affected in this patient?

A) C3-C4
B) C5-C6
C) C7-C8
D) C8-T1
E) T1-T2

Correct Answer:

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