Left arm pain, tingling and hyperreflexia. Brain:There is no acute infarct or intracranial hemorrhage. There is no abnormal brain signal. The ventricles and the other CSF-containing spaces are normal in size. The morphology of the cerebellar tonsils and the relationship to the foramen magnum is normal. There is preservation of the CSF filled spaces at the level of foramen magnum. Accounting for a dominant left vertebral artery, the major intracranial vascular flow voids are preserved, reflecting gross patency. Mastoid air cells are clear. There is no gross orbital abnormality, accounting for artifact involving the anterior aspect of the orbits.Cervical spine:Sagittal alignment is notable for straightening which may reflect patient position. There is mild dessication of the discs at C2-C3, C3-C4 and C5-C6. There is mild disc height loss at C5-C6. The vertebral bodies are preserved in height. There is no suspicious marrow signal abnormality. The cervical spinal cord is normal. There is no significant spinal canal or foraminal stenosis at any level, down to T2-T3.
1.MRI of the brain is within normal limits; specifically no evidence of Chiari malformation.2.No significant spinal canal or foraminal stenosis in the cervical spine.