Fig. 1

a, b Fluid-attenuated inversion recovery (FLAIR) and c, d T2-weighted imaging show increased T2 signal involving the right temporal lobe and right frontal lobe and no evidence of hemorrhage. A 9 mm right-to-left midline shift is shown with early right uncal herniation, effacement of the right lateral ventricle, and dilatation of the temporal horn of the right lateral ventricle. The hyperintense areas surrounding the lateral ventricles (a, b) are likely representative of leukoaraiosis rather than tumor lesions. e, f T1 imaging shows a 6.3 cm × 5.5 cm × 4.8 cm ring-enhancing heterogeneous cystic mass in the right frontotemporal region with a 3.5 cm × 3.0 cm avidly enhancing mural nodule with diffusion restriction (diffusion imaging not shown) on the lateral aspect of the mass