56-year-old female with bilateral lower extremity weakness status post L3 perispinal tumor resection, L3 left hemilaminectomy and hemipediculotomy and fusion. Evaluate for cord compression. The spinal cord has normal signal characteristics and overall morphology. There is no compromise of the spinal cord. Degenerative changes are also seen involving the cervical spine most prominently in the affecting the C4-5 level where there is grade 1 anterolisthesis of C4 on C5 and disc height loss. At this level there is also mild to moderate spinal canal stenosis but no compromise of the spinal cord. Redemonstrated are postoperative findings compatible with resection of the tumor from the left L3 paraspinal region which are unchanged and better characterized on the dedicated lumbar spine MRI from 12/2/2016. There is some additional neural foraminal encroachment involving the lumbar spine mainly at L2-3. There is mild posterior subluxation of L3 on L4 which is unchanged since the prior exam.
This is a limited exam specific for the exclusion of cord compression only and does not exclude more subtle lesions such as intrinsic cord abnormalities. No cord compression is identified.Postoperative findings involving previous resection of a left L3 paraspinous tumor are grossly unchanged although not completely evaluated. Refer to the dedicated lumbar spine MRI performed on 12/3/2016 for further characterization. There is encroachment of the left-sided exiting nerve roots at L3-4.Additional degenerative changes are seen in the cervical spine including grade 1 anterolisthesis of C4 on C5 with at most mild-to-moderate spinal canal stenosis.