Chiari malformation, right arm pain Examination is mildly motion degraded. There are postoperative changes of suboccipital craniectomy and removal of posterior arch of C1 for Chiari decompression. There is dorsal angulation of the dens. There is minimal residual effacement of the CSF spaces at the neo-foramen magnum with preserved biphasic CSF flow. Dorsal cerebellum abuts the dural surface where there may be scarring. The cervical vertebral bodies are appropriate in height. There is mild loss of cervical lordosis and minimal anterolisthesis of C5 on C6; these changes are progressed since remote MRI from 2003.. Bone marrow signal is benign.The cervical spinal cord has normal signal characteristics and overall morphology.Degenerative changes are seen in the cervical spine as described below:C2-3: No significant compromise to the spinal canal or neural foramina.C3-4: No significant compromise to the spinal canal or neural foramina.C4-5: No significant compromise to the spinal canal. There is mild right neural foraminal narrowing related to uncovertebral hypertrophy. No significant left neural foraminal narrowing. Mild facet arthropathy, worse on the right.C5-6: Small disc bulge without significant spinal canal or left neural foraminal stenosis. Mild right neural foraminal narrowing related to uncovertebral hypertrophy. Mild facet arthropathy, worse on the right.C6-7: No significant compromise to the spinal canal or neural foramina.C7-T1: No significant compromise to the spinal canal or neural foramina.The vertebral artery flow voids appear to be intact. Paraspinous soft tissue structures appear within normal limits.
1. Postoperative changes of Chiari decompression with preserved biphasic CSF flow at the foramen magnum.2. Mild degenerative changes in the cervical spine which have progressed since remote MRI from 2003. There is mild right C4-C5 and C5-C6 neural foraminal narrowing. No high-grade neural foraminal stenosis or spinal canal stenosis at any level. Please see details above.