Abnormal signal intra axial enhancing masses associated with vasogenic edema are seen at the posterior fossa causing to expansion of cerebellar hemispheres, impinging forth ventricle and encroaching to posterior aspect of brain stem.
Right sided ventricular shunt is present.
high signal intensity white matter lesions are seen at periventricular, centrum semiovale and juxta cortical regions due to small vessels ischemic changes in the background of chemotherapy and radiotherapy effects.