 Again seen is thoracic syringohydromyelia centered at the T7 vertebral body level that measures up to 6 x 7 mm in the AP and transverse dimensions, previously also 6 x 7 mm. Craniocaudally the syrinx measures proximally 2.6 cm which is also not significant changed.The conus medullaris is positioned at the L1 vertebral body level. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal or neural foraminal stenosis. The paravertebral soft tissues are unremarkable.Limited evaluation of the craniocervical junction on the sagittal counting sequences again demonstrates ectopia of the cerebellar tonsils with a peglike configuration consistent with Chiari I malformation.
1. Compared to 2/4/2015, there is no significant change in the thoracic syrinx centered at T7 which measures 6 x 7 x 26 mm in the AP, transverse, and craniocaudal dimensions.2. Findings of Chiari I malformation better assessed on prior brain MRI.