MRI
A frond-like isosignal T1W/T2W intraventricular mass within the 4th ventricle without invasion to cerebellar hemispheres shows marked enhancement following contrast administration. Extension of mass into magendie foramen is seen.
Obstructive hydrocephalus is visible by this mentioned mass associated with periventricular interstitial edema.
Compression of mass on the dorsal aspect of the brain stem is visible.
No DWI restriction is identified.