MRI of the spine.Spine MRI showing C3 lesion with posterior extension to the ventral and lateral epidural spaces encircling the spinal cord associated with cord compression, edema, and expansion (top arrow). There is an extensive osseous metastatic disease with cortical breakthrough along with compression from the C5-C6 vertebral bodies that effaces, but does not surpass the thecal sac at the C5-C6 level (bottom arrow).