Figure 1. Tuberculous meningitis. (a) T₂ and (b) pre-contrast T₁ weighted axial images show presence of hydrocephalus. (c) Pre-contrast T₁ weighted magnetization transfer (MT) image shows thick basal meninges as hyperintense signal around the brain stem (small arrows), not seen on T₁ weighted image (b). (d) Post-contrast T₁ weighted MT axial demonstrate thick enhancement of the basal meninges and exudates.