Figure 2: (a) T2-weighted coronal and (b) FLAIR axial MRI images showing a right-sided heterogeneous high signal lesion from the midbrain to the pons, extending to the cerebellopontine angle, with a slight mass effect on the fourth ventricle. (c) T1-weighted aspect of the lesion, with heterogeneous low signal and (d) T1-weighted post-gadolinium sagittal image showing its enhanced pattern