Diagnosis of probable or possible TBM requires signs and
symptoms of meningitis inassociation with clinical, CSFandcerebral imaging findings suggestive of M. tuberculosis infection. The evidence of TB outside the CNS can further contribute to probable or possible diagnosis. A score that includes the most common findings in children with TBM and in which single findings are assigned a point according to the frequency with which they are usually demonstrated has been created by Marais et al.8 According to these authors, probable TBM is defined by a score between 10 and 12, whereas possible TBM is defined by a score higher than 6