Clinical question: Arnold-Chiari evaluate for syrinx. Signs and symptoms: dysphagia. Unenhanced cervical spine MRI:There is herniation of cerebellar tonsils to the foramen magnum of approximately 8.5 mm and with subtle flattening deformity of the tonsil. Findings consistent with Chiari malformation.There is normal signal intensity and caliber the cervical cord and without evidence of syrinx.There is normal anatomical development of cervical vertebral column and no evidence of spinal canal or neural foraminal compromise.Nonenhanced thoracic spine MRI:There is normal anatomical development, alignment and signal intensity of the vertebral column.There is normal signal intensity and caliber of thoracic cord.There is no evidence of spinal canal or neuroforaminal compromise.Nonenhanced lumbar spine MRI:There are 6 lumbar type vertebral bodies which is an anatomical variation. There is no detectable congenital malformation of the vertebral column.There is normal signal intensity of the conus and with termination of the cord at L1 -- L2 disk level.There is normal signal intensity and morphology of cauda equina and in particular there is no evidence of fatty filum or tethered cord.The perispinal soft tissues are unremarkable.
1.MRI of the cervical spine demonstrate 8.5-mm herniation of cerebellar tonsils through the foramen magnum with mild flattening deformity. Unremarkable MRI of cervical spine otherwise in particular without evidence of syrinx.2.Nonenhanced MRI of thoracic spine is unremarkable.3.Nonenhanced MRI of the lumber spine demonstrates 6 lumbar type vertebrae which is a normal anatomical variation. There is normal signal intensity and morphology of the conus and cauda equina without evidence of abnormalities. There is termination of the cord at L1 -- L2 level.