There is a large lesion arise from both left & right side of thalamus (bigger on left side) protruding up & compressing the lateral ventricles with a degree of hydrocephalus. The lesion shows heterogeneous signals best seen on T2 image. The lesion shows no enhancement after admission of contrast, but does restrict on DWI.
MRS demonstrates a perfect tumour trace, with elevation of choline and reduction of NAA.