Compression of brain. Other specified postprocedural states. Other specified diseases of spinal cord Compression of brain. Assess Chiari decompression There have been interval surgical changes related to Chiari decompression. There appears to be decreased mass effect upon the brainstem anterior to the tonsils. CSF flow is demonstrated anteriorly and posteriorly, at the level of the cerebellar tonsils and through the foramen magnum.The cervical vertebral bodies are appropriate in overall alignment and height. The C1 vertebral body appears to be fused to the skull base. The posterior arch of C1 is not readily identified laminectomy changes from C2 through C6 are demonstrated. The previously identified T2 signal involving the upper cervical spinal cord is unchanged.At C2-3 there is no significant compromise to the spinal canal. There is a disc bulge present at level associated with some uncovertebral osteophytes and narrowing of the neural foraminal encroachment of left-sided exiting nerve roots..At C3-4 there is no significant compromise to the spinal canal. There is a disc bulge present this level associated with uncovertebral osteophytes and narrowing of the neural foramina bilaterally and encroachment of the exiting nerve roots.At C4-5 there is no significant compromise to the spinal canal or neural foramina. There is a disc bulge at this level. There are some right-sided uncovertebral osteophytes at this level.At C5-6 there is no significant compromise to the spinal canal. There is a disc bulge at this level associated with uncovertebral osteophytes bilaterally worse on the right side. There is encroachment of the right exiting nerve roots within the neural foramen.At C6-7 there is no significant compromise to the spinal canal. There are endplate and uncovertebral osteophytes present this level associated with encroachment of the exiting nerve roots within the neural foramina bilaterally.At C7-T1 there is no significant compromise to the spinal canal or neural foramina.The vertebral artery flow voids appear to be intact.
1.Chiari I malformation status post decompression.2.There is biphasic CSF flow present at the level of the cerebellar tonsils.3.Stable T2 signal abnormality involving the upper cervical spinal cord.4.Multilevel degenerative changes similar to prior examination.