A cerebellar mass lesion is seen epicentered on the vermis with low T2 signal and perifocal edema. It shows wall enhancement and internal heterogeneous post contrast enhancement. No diffusion restriction identified. It is compressing the 4th ventricle. In view of patient's history, features are suggestive of vermian metastasis.
Incidental note of a subependymal lesion at the inferior part of 4th ventricle with isointense signal in all pulse sequences and no post contrast enhancement, suggestive of subependymoma.