Viral meningitis diagnosis depends on mainly the CSF studies. CT scan is required for imaging before applying the lumbar puncture to see if there is any contraindication for the procedure. However, CT scan may be performed to exclude other brain diseases that can be misinterpreted with the viral meningitis.^[1]

In suspected cases with viral meningitis the CT scan may be required before applying the lumbar puncture to exclude its contraindications. CT scan in the meningitis cases most commonly is normal except in few cases it may be abnormal.