Central Nervous System Tuberculosis Diagnosis and Management

Central nervous system tuberculosis encompasses a spectrum of intracranial and intraspinal infections caused by Mycobacterium tuberculosis, most commonly presenting as tuberculous meningitis, tuberculomas, abscesses and myelitis. Early recognition is critical, since delayed diagnosis often leads to irreversible neurological damage or death. Diagnostic evaluation integrates clinical assessment, cerebrospinal fluid analysis and neuroimaging. Typical cerebrospinal fluid findings include lymphocytic pleiocytosis, elevated protein and low glucose concentrations. Conventional microscopy and culture of cerebrospinal fluid are specific but lack sensitivity and speed, which has driven the adoption of nucleic acid amplification tests to improve early detection. Neuroimaging with computed tomography and magnetic resonance imaging remains indispensable for confirming meningeal enhancement, identifying tuberculomas, detecting hydrocephalus and visualising vascular complications. Advanced imaging techniques—including diffusion-weighted imaging, magnetisation transfer and proton spectroscopy—offer further insights into lesion characterisation and disease extent. Management relies on prolonged combination chemotherapy, usually comprising isoniazid, rifampicin, pyrazinamide and ethambutol or streptomycin, with treatment extended over nine to twelve months. Adjunctive corticosteroids reduce mortality by mitigating inflammatory damage, particularly in cases of meningeal inflammation and hydrocephalus. Surgical interventions, such as ventriculoperitoneal shunting, may be required for refractory hydrocephalus, while antiplatelet or anticoagulant therapies are under investigation for preventing cerebral infarction. Emerging drug-resistant strains, immune reconstitution inflammatory syndrome and HIV co-infection complicate management and underscore the need for novel therapeutics and tailored regimens. A multidisciplinary approach involving neurologists, infectious-disease specialists and neuroradiologists remains pivotal to improving outcomes in this high-mortality condition.

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Central Nervous System Tuberculosis Diagnosis and Management publication trend

The graph below shows the total number of articles in central nervous system tuberculosis diagnosis and management across all publications each year (not limited to Nature Index journals).

Technical terms

Tuberculous meningitis: infection of the meninges by Mycobacterium tuberculosis, characterised by inflammation and neurological sequelae.

Tuberculoma: a granulomatous lesion in the brain or spinal cord formed during Mycobacterium tuberculosis infection.

Hydrocephalus: accumulation of cerebrospinal fluid in the ventricles, often complicating central nervous system tuberculosis.

Vasculitis: inflammation of blood vessel walls that can lead to infarction in tuberculous meningitis.

Diffusion-weighted imaging: an MRI technique sensitive to the movement of water molecules, aiding in early detection of infarcts.

References

1. MRI advances in the imaging diagnosis of tuberculous meningitis: opportunities and innovations. Frontiers in Microbiology (2023).
2. Distinguishing clinical characteristics of central nervous system tuberculosis in immunodeficient and non-immunodeficient individuals: a 12-year retrospective study. Annals of Clinical Microbiology and Antimicrobials (2023).
3. Tuberculous Meningitis: Diagnosis and Treatment Overview. Tuberculosis Research and Treatment (2011).
4. Central Nervous System Tuberculosis: An Imaging‐Focused Review of a Reemerging Disease. Radiology Research and Practice (2015).
5. Acute ischemic stroke in tuberculous meningitis. Frontiers in Public Health (2024).