CNS tuberculosis (Chap. 165)
Axial T2-weighted MRI (A) demonstrates multiple lesions (arrows) with peripheral high signal and central low signal, located predominantly in the cortex and subcortical white matter, as well as in the basal ganglia.
Axial T1-weighted MR images postgadolinium (B, C) demonstrate ring enhancement of the lesions (arrows) and additional lesions in the subarachnoid space (arrowheads).
Sagittal T2-weighted MR image of the cervical spine (D) demonstrates a hypointense lesion in the subarachnoid space at the level of T5 (arrow).
Sagittal T1-weighted MR image postgadolinium of the cervical spine (E) demonstrates enhancement of the lesion in the subarachnoid space at the level of T5 (arrow).