Demyelinating Diseases USMLE Step 1 Practice Question
A 40-year-old man presents with acute loss of consciousness, seizures, and multiple multifocal ring-enhancing lesions on brain MRI. CSF reveals lymphocytic pleocytosis with negative bacterial culture and negative JC virus PCR. Serum and CSF testing shows elevated interleukin-6 and oligoclonal bands. Which of the following is the most likely diagnosis?
Answer choices
- AAcute hemorrhagic encephalomyelitisCorrect answer
- BTuberculous meningitis
- CBacterial meningitis
- DCNS lymphoma
- EToxoplasmosis
- FProgressive multifocal leukoencephalopathy
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