CT of the lumber spine without effusion. The construct parallel to the disks. Finding pedicular screw placement. Fusion at L4 -- L5. Non-infused CT of lumber spine:Axial 1.0-mm CT images of the entire lumbosacral spine were performed. Sagittal and coronal 2-D reformatted images were also acquired.The alignment the vertebral column is unremarkable.Examination demonstrates advanced degenerative disk disease at L1 -- L2 with significant loss of intravertebral disk height and extensive adjacent endplate sclerosis.Minimal degenerative changes of disks at the other levels are noted.There is significant hypertrophic changes of posterior elements in particular of the ligamentum flavum with heavy calcification at multiple levels. This is more severe at L4 -- L5 level with evidence of mass-effect by hypertrophied ligamentum flavum on the thecal sac and results in central spinal stenosis. There is a focus of low attenuation of the bone with internal thick articulation in the left pedicle of L5 vertebrae highly suspected of skeletal hemangioma. This finding a is also visible on prior MRI examination. On the current exam this finding is most noticeable on axial image 43 of series 80228. On prior MRI exam this finding was visible on sagittal T2 weighted image 12 of series 2 and axial T2-weighted image 31 of series 5.
1.Extensive degenerative changes of posterior elements throughout the lumber spine in particular of the ligamentum flavum with heavy calcification and resultant central spinal stenosis at L4--L5.2.Small hemangioma of left L5 pedicle measuring approximately 9.6 x 8.6-mm in size.