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How is meningitis diagnosed on a CT scan?

Sometimes meningitis is due the direct spread of infection from paranasal sinus or mastoid infection, thus imaging helps exclude this source of infection. Brain CT may be negative or may show effacement of some sulci. Leptomeningeal enhancement is better seen in post-contrast FLAIR images are very helpful to show leptomeningeal enhancement.

What is the pathophysiology of meningitis?

Meningitis starts when bacteria in the venous sinuses cause inflammation that impairs normal CSF drainage and may lead to hydrocephalus. In the early stages of infection, the pia and arachnoid mater become congested and hyperemic.

What is the prognosis of bacterial meningitis?

Meningitis is infection of the meninges, most frequently due to hematogenous spread of a bacterial infection. Some people with the infection die and death can occur in as little as a few hours. However, most people recover from bacterial meningitis. Those who do recover can have permanent disabilities.

Which radiographic findings are characteristic of lobar meningitis?

D, Typical pattern of a lobar pneumonia was detected on chest radiography. Neuroimaging detects the complications of meningitis, which include hydrocephalus, ventriculitis, empyema, venous sinus thrombosis, and infarctions.


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