A 33-year-old woman comes to the office due to sensory loss in | Uworld | Step 2ck

A 33-year-old woman comes to the office due to sensory loss in both upper extremities. She recently burned both of her hands while cooking but did not feel any pain. The patient has no history of trauma, headache, or neck pain. She also has no lower extremity weakness or abnormalities of bowel or bladder function. Examination shows diminished strength in the upper limbs. There is loss of pain and temperature sensation on the posterior neck, both shoulders, and both upper extremities. Vibratory and proprioceptive sensation are preserved.