Other cyst of bone, multiple sites [M85.69], Reason for Study: ^Reason: eval bone cyst of cervical fusion mass History: neck pain, bilateral upper extremity symptoms Redemonstration of anterior cervical fusion from C4 to C7 and the C6 and C7 appear to be fused. Susceptibility artifact resulting from instrumentation limiting evaluation of paravertebral soft tissues. Previously seen C6 and C7 posterior left lateral body high signal intensity lesion is still seen. There is no significant interval change since prior scan in terms of size, configuration and MR signal characteristics. On post Gad enhancement, the lesion show relatively homogenous enhancement. The lesion is well circumscribed, not expansile or no evidence of cortical disruption and not change in size since prior scan thus indicate benign or low grade slowly growing in nature.Focal central to left disc protrusion at the level of C23 which abuts thecal sac, unchanged since prior scan.There are multilevel degenerative changes of cervical spine including mild to moderate spinal canal stenosis at the level of C34 and C7T1, unchanged since prior scan.Moderate neuroforaminal stenosis bilateral C7T1 and right side C34, unchanged.
1. Redemonstration of C4 to C7 anterior fusion status.2. Relatively well defined C6-C7 vertebral body lesions with diffuse enhancement, unchanged.3. Multifocal degenerative changes of cervical spine as described above, unchanged.