CASE 89 History: A 50-year-old woman presents with leg weakness and numbness. 1. Which of the following should be included in the differential diagnosis for the imaging findings presented? (Choose all that apply.) b. Lymphoma c. Meningitis d. Sarcoidosis 2. Which of the following primary central nervous system neoplasms is least likely to seed the spinal subarachnoid space? b. Lymphoma c. Ependymoma d. Dysembryoplastic neuroepithelial tumor (DNET) 3. What percentage of patients with glioblastoma multiforme develop macroscopically evident spinal drop metastases? a. 1% b. 10% c. 25% d. 50%
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