Tuberculous meningitis

Tuberculous meningitis (also known as TBM) is a form of tuberculosis that affects the meninges, which are the protective membranes covering the brain and spinal cord. It is a serious condition that can lead to permanent brain damage or death if not treated promptly.

Causes

Tuberculous meningitis is caused by the bacterium Mycobacterium tuberculosis, which is the same bacterium that causes most cases of tuberculosis. The bacteria can spread from the lungs to the meninges, usually as a result of a primary tuberculosis infection that was not adequately treated.

Symptoms

The symptoms of tuberculous meningitis can vary, but often include fever, headache, nausea and vomiting, neck stiffness, and changes in mental state such as confusion or drowsiness. In severe cases, patients may experience seizures or coma.

Diagnosis

Diagnosis of tuberculous meningitis can be challenging, as the symptoms are similar to those of other forms of meningitis. Tests that may be used include a lumbar puncture to examine the cerebrospinal fluid, and imaging tests such as MRI or CT scan.

Treatment

Treatment for tuberculous meningitis typically involves a long course of antibiotics, often for a period of 9 to 12 months. In some cases, corticosteroids may also be used to reduce inflammation in the brain.

Prognosis

The prognosis for tuberculous meningitis can vary depending on factors such as the patient's age and overall health, the severity of the disease, and how promptly treatment is started. Even with treatment, some patients may experience long-term neurological complications.

See also

• Tuberculosis
• Meningitis
• Mycobacterium tuberculosis

References

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