CT, MR imaging, MR spectroscopy, and angiography were performed in two men
(ages 21 and 48, respectively) with intraventricular meningioma, In both ca
ses, CT and MR imaging showed large tumors located in the trigone of the ri
ght lateral ventricle that enhanced intensely after contrast administration
. MR spectroscopy was helpful in supporting a preoperative diagnosis of men
ingioma in both cases.