Viral meningitis not elsewhere classified is an infection of the meninges caused by a virus that has not been identified. The most common cause is enteroviruses, but other unidentified viruses can also be responsible.
Viral meningitis not elsewhere classified is usually diagnosed based on its clinical presentation and laboratory tests. Clinical signs include fever, headache, neck stiffness, photophobia, and vomiting. Laboratory tests may include a lumbar puncture to examine the cerebrospinal fluid (CSF), which may show an increase in white blood cells and a decrease in glucose levels.
Viral meningitis not elsewhere classified must be differentiated from bacterial meningitis, which is a more serious infection. Other conditions that must be considered in the differential diagnosis include encephalitis, brain abscess, and subarachnoid hemorrhage.
Treatment of viral meningitis not elsewhere classified is supportive. Antiviral medications may be prescribed if the specific virus is identified. Treatment may include rest, fluids, and medications to reduce fever and manage pain.
The prognosis of viral meningitis not elsewhere classified is typically good. Most patients recover with no long-term complications. However, some patients may experience residual neurological deficits.