CASE 109 History: A 58-year-old man who underwent back surgery 1 year ago presents with low back pain and radiculopathy. 1. What should be included in the differential diagnosis? (Choose all that apply.) c. Posterior disk cage migration d. Meningioma 2. What is the reported rate of cage migration? b. Less than 2% c. 5% 3. All of the following imaging findings support the diagnosis of a migrated cage rather than disk herniation except: a. Presence of bilateral transpedicular screws b. Rectangular-shaped appearance of the abnormality on axial images c. Abnormality marginated by a dark rim on T1-weighted and T2-weighted images d. Modic type I end-plate changes
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