Colloid Cyst and Meningioma
Findings:
Multiple MR images show an enhancing mass in the right
Meckel's cave region which exhibits hypointensity on T2 weighted images.
Hydrocephalus is caused by a round, nonenhancing, T1 isointense/T2 hypointense
mass in the region of the Foramen of Monro.
Discussion:
For discussion about colloid cyst and meningioma, please
refer to unknown cases #3 and #15 respectively.