CASE 15 History: A 45-year-old man presents with a 6-month history of neck and upper extremity pain, right worse than left; numbness in the forearm and fingers; and difficulty performing fine motor tasks. 1. What should be included in the differential diagnosis? (Choose all that apply.) a. Diffuse idiopathic skeletal hyperostosis 2. According to the classification of cervical canal stenosis by Muhle and colleagues, which grade defines complete obliteration of the subarachnoid space? a. Grade 0 b. Grade 1 c. Grade 2 d. Grade 3 3. Which of the following statements regarding cervical spinal stenosis is true? a. Patients with spinal stenosis are less susceptible to traumatic cord injury. b. MRI can overestimate the degree of stenosis in the cervical region.
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