Tuberculoma of the brain on CT and MRI

A noncontrast CT scan (A) of a six-year-old male presenting with left-sided hemiplegia and seizures shows a large soft tissue density mass (asterisk) containing central calcification (arrowhead) involving almost the entire visualized frontoparietal region. Image B is a contrast-enhanced CT scan reformatted in the coronal plane and shows the large mass (asterisk) with central calcification (arrowhead) and an enhancing border (arrows). Image C is a T1-weighted sagittal sequence MRI showing an iso- to hypointense lesion (asterisk). Image D is a contrast-enhanced T1-weighted MRI in the axial plane and shows the mass (asterisk) with an enhancing rim (arrows). Image E is a T2-weighted MRI and shows the characteristic low intensity mass (asterisk), surrounding edema (delta), midline shift (arrowhead), and a dilated, partially obstructed left lateral ventricle (arrow).