 Examination is of the thoracic spine, and the cervical spine is partially imaged on the sagittal T2 counting sequence.There are postoperative findings related to Chiari decompression surgery. The cerebellar tonsils display a grossly unchanged configuration and position based on the limited sequence. Again seen is a thin, long-segment cervicothoracic syrinx. Cervical portion of the syrinx is not well evaluated. The thoracic component extends throughout the thoracic cord terminating inferiorly at the T11 level. Syrinx is relatively largest at the T4-T5 level where it measures 2 x 4 mm in the AP and transverse dimensions and unchanged.There is unchanged loss of the usual cervical lordosis and a small posterior disc-osteophyte complex at C5-6 without significant spinal canal stenosis. Vertebral body heights and alignment in the thoracic spine are normal. There is no significant spinal canal or neural foraminal stenosis in the thoracic spine. Bone marrow signal is benign.
No significant change in size of the thoracic syrinx compared to 9/10/2015. Note the cervical portion of the syrinx is not well assessed.