MRI
Axial T1
Axial T2
Sagittal T2
Axial FLAIR
Axial DWI
Axial ADC
Axial SWI
Axial T1 C+ fat sat
Sagittal T1 C+ fat sat
Coronal T1 C+ fat sat
A large predominantly cystic mass lesion with some solid enhancing component is noted within the right cerebellar hemisphere causing effacement and compression of the fourth ventricle with resultant moderate dilatation of the proximal ventricular system. Mild surrounding vasogenic edema is noted.
No diffusion restriction on DWI/ADC sequences. No dropout signal on SWI sequence.