
Figure 1
Axial T2-weighted Magnetic Resonance Imaging Scans of Patient 1 (A,B). A hypointense lesion with a hyperintense rim in the dorsal aspect of the right mesencephalon extending from the superior cerebellar peduncle to the mesencephalic–diencephalic transition zone.

Figure 2
Axial T1-weighted Enhanced Magnetic Resonance Scans of Patient 2 (A,B). A tumor located in the right pontine and mesencephalic tectum and tegmentum.

