TB Meningitis

Multiple conglomerate ring enhancing lesions in the basal cisterns extending along tentorium predominantly on left side with lipid lactate peaks on MRS and dilated ventricular system.
The incidence of CNS TB is related to the prevalence of TB in the community, and it is still the most common type of chronic CNS infection in developing countries.
In an immunocompetent individual, CNS TB usually takes the form of meningitis that causes an acute-to-subacute illness characterized by fever, headache, drowsiness, meningism, and confusion over a period of approximately 2-3 weeks.
Two rare forms of TBM are serous TB meningitis and TB encephalopathy. Serous TB meningitis is characterized by signs and symptoms of a mild meningitis with spontaneous recovery. TB encephalopathy usually occurs in a young child with progressive primary TB; the presentation is that of reduced levels of consciousness with few focal signs and minimal meningism.

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