The diagnosis of brain tuberculoma by 1H-magnetic resonance spectroscopy

Toddlers are more prone to develop severe and extrapulmonary tuberculosis (TB) than older children. This is partially explained by differences in the immune response. Early and specific diagnosis is essential to start adequate treatment, especially if the central nervous system (CNS) is involved. The lack of sputum production and inherent dangers or impossibility of sampling CNS lesions may delay diagnosis. In addition, the magnetic resonance imaging (MRI) features of TB abscesses are non-specific and may mimic abscesses of other infectious etiology. 1H-magnetic resonance spectroscopy (1H-MRS) may increase specificity of diagnosis by identifying lipids within the lesions that are considered characteristic for TB. Therefore, we studied four children with presumable CNS-TB with MRI and 1H-MRS. In vivo and in vitro 1H-MRS showed elevated lipid peaks within the TB lesions. Conclusion:1H-MRS allows to non-invasively identifying TB with high specificity and may allow early installment of targeted antimicrobial treatment.