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</div><div><span>Meningitis - tuberculous</span></div></div>
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<article><div id="d-article"><div class="page-info"><div class="page-title"><a name="start" id="start">
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</a><h1 class="with-also" itemprop="name">Meningitis - tuberculous</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>Tuberculous meningitis is an infection of the tissues covering the brain and spinal cord (meninges).</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Causes</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>Tuberculous meningitis is caused by <em>Mycobacterium tuberculosis</em>. This is the bacterium that causes tuberculosis (<a test="test" href="./000077.htm">TB</a>). The bacteria spread to the brain and spine from another place in the body, usually the lung.</p><p>Tuberculous meningitis is very rare in the United States. Most cases are in people who traveled to the United States from other countries where TB is common.</p><p>People who have the following have a higher chance of developing tuberculous meningitis:</p><ul><li><a test="test" href="./000594.htm">HIV/AIDS</a></li><li><a test="test" href="./000944.htm">Drink alcohol in excess</a></li><li><a test="test" href="./000077.htm">TB of the lung</a></li><li>Weakened immune system </li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Symptoms</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>The symptoms often start slowly, and may include:</p><ul><li>Fever and chills</li><li><a test="test" href="./003205.htm">Mental status changes</a></li><li>Nausea and vomiting</li><li>Sensitivity to light (<a test="test" href="./003041.htm">photophobia</a>)</li><li>Severe headache</li><li>Stiff neck (meningismus)</li></ul><p>Other symptoms that can occur with this disease may include:</p><ul><li>Agitation</li><li><a test="test" href="./003310.htm">Bulging fontanelles</a> (soft spots) in babies</li><li>Decreased consciousness</li><li>Poor feeding or irritability in children</li><li>Unusual posture, with the head and neck arched backward (<a test="test" href="./003195.htm">opisthotonos</a>). This is usually found in infants (less than 3 months old)</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Exams and Tests</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>The health care provider will examine you. This will usually show that you have the following:</p><ul><li>Fast heart rate</li><li>Fever</li><li>Mental status changes</li><li>Stiff neck </li></ul><p>A lumbar puncture (<a test="test" href="./003428.htm">spinal tap</a>) is an important test in diagnosing meningitis. It is done to collect a sample of spinal fluid for examination. More than one sample may be needed to make the diagnosis.</p><p>Other tests that may be done include:</p><ul><li><a test="test" href="./003416.htm">Biopsy</a> of the brain or meninges (rare)</li><li><a test="test" href="./003744.htm">Blood culture</a></li><li><a test="test" href="./003804.htm">Chest x-ray</a></li><li><a test="test" href="./003369.htm">Cerebrospinal fluid (CSF) examination</a> for cell count, glucose, and protein</li><li><a test="test" href="./003786.htm">CT scan of the head</a></li><li>Gram stain, other special stains, and <a test="test" href="./003769.htm">culture of CSF</a></li><li>Polymerase chain reaction (PCR) of CSF</li><li>Skin test for TB (<a test="test" href="./003839.htm">PPD</a>)</li><li>Other tests to look for TB </li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Treatment</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>You will be given several medicines to fight the TB bacteria. Sometimes, treatment is started even if your provider thinks you have the disease, but testing has not confirmed it yet.</p><p>Treatment usually lasts for at least 12 months. Medicines called corticosteroids may also be used.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Outlook (Prognosis)</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>Tuberculous meningitis is life threatening if untreated. Long-term follow-up is needed to detect recurring infections.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Possible Complications</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Untreated, the disease can cause any of the following:</p><ul><li>Brain damage</li><li>Build-up of fluid between the skull and brain (<a test="test" href="./001422.htm">subdural effusion</a>)</li><li>Hearing loss</li><li><a test="test" href="./001571.htm">Hydrocephalus</a> (buildup of fluid inside the skull that leads to brain swelling)</li><li><a test="test" href="./003200.htm">Seizures</a></li><li>Death</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>When to Contact a Medical Professional</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>Call 911 or the local emergency number or go to an emergency room if you suspect meningitis in a young child who has the following symptoms:</p><ul><li>Feeding problems</li><li>High-pitched cry</li><li>Irritability</li><li>Persistent unexplained fever </li></ul><p>Call the local emergency number if you develop any of the serious symptoms listed above. Meningitis can quickly become a life-threatening illness.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Prevention</h2></div><div class="section-button"><button type="submit" aria-controls="section-8" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-8"><p>Treating people who have signs of a non-active (dormant) TB infection can prevent its spread. A PPD test and other TB tests can be done to tell if you have this type of infection.</p><p>Some countries with a high incidence of TB give people a vaccine called BCG to prevent TB. But, the effectiveness of this vaccine is limited, and it is not usually used in the United States. The BCG vaccine may help prevent severe forms of TB, such as meningitis, in very young children who live in areas where the disease is common.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Tubercular meningitis; TB meningitis</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/19080t.jpg" alt="Meninges of the brain" title="Meninges of the brain" class="side-img"/><a href="../imagepages/19080.htm">Meninges of the brain</a></li>
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/19088t.jpg" alt="Meninges of the spine" title="Meninges of the spine" class="side-img"/><a href="../imagepages/19088.htm">Meninges of the spine</a></li>
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>Cruz AT, Starke JR. Tuberculosis. In: Cherry JD, Harrison GJ, Kaplan SL, Steinbach WJ, Hotez PJ, eds. <em>Feigin and Cherry's Textbook of Pediatric Infectious Diseases</em>. 8th ed. Philadelphia, PA: Elsevier; 2019:chap 96.</p><p>Ellner JJ, Jacobson KR. Tuberculosis. In: Goldman L, Schafer AI, eds. <em>Goldman-Cecil Medicine</em>. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 308.</p><p>Fitzgerald DW, Sterling TR, Haas DW. Mycobacterium tuberculosis. In: Bennett JE, Dolin R, Blaser MJ, eds. <em>Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases</em>. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 249.</p></div></div></section>
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<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 12/4/2022</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Jatin M. Vyas, MD, PhD, Associate Professor in Medicine, Harvard Medical School; Associate in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.</p>
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