CASE 54 History: A 61-year-old woman presents with progressive difficulty walking and bladder and bowel incontinence. 1. What should be included in the differential diagnosis? (Choose all that apply.) a. Metastasis b. Plasmacytoma d. Lymphoma e. Aggressive vertebral hemangioma 2. What is the location of the lesion? c. Extradural d. Subdural 3. What are the typical signal characteristics of a vertebral hemangioma on MRI? a. Hyperintense on T1-weighted images and hyperintense on T2-weighted images b. Hyperintense on T1-weighted images and hypointense on T2-weighted images c. Hypointense on T1-weighted images and hyperintense on T2-weighted images d. Hypointense on T1-weighted images and hypointense on T2-weighted images 4. All of the following imaging features may be seen in aggressive vertebral hemangiomas except: a. Extension into the neural arch
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