Tubercular arachnoiditis: A rare culprit of paraparesis in a young adult - A case report and review of literature.

Background: The prevalence of central nervous system tuberculosis (TB) is about 1-2% of all TB cases. Atypical cases like the present case, being interpreted as leptomeningeal metastasis in magnetic resonance imaging (MRI), can pose a dilemma, delaying or even leading to mistreatment.

Case Description: A 19-year-old male presented with acute onset paraparesis and bowel bladder involvement presented with an MRI lumbar spine suggesting leptomeningeal metastasis from D11-L5 levels who underwent decompression biopsy which on histopathological examination revealed to be tubercular granulomatous infection.