Diagnosis-aseptic meningitis

• Obtain LP for CSF analysis: lymphocytic pleocytosis common in viral etiologies (see Typical CSF Findings in Meningitis table above)
• Consider CSF cytology and MRI brain/spine to evaluate for malignancy
• Consider serum autoimmune and serum viral testing in appropriate settings if CSF is unrevealing and there is no improvement with empiric treatment