Unspecified infectious and parasitic diseases [136.9] / Infectious acute disseminated encephalomyelitis (ADEM)(323.61) [323.61], Reason for Study: ^Reason: f/u ADEM, NMO spectrum disorder History: f/u ADEM, NMO spectrum disorder C-spine:Redemonstration of the high signal intensity lesions on T2 and STIR images at the level of C3 and C6, the MR characteristics and the extent of the lesion do not show any significant interval change since prior scan. There is no evidence of abnormal enhancement. The basal.The cranial-cervical junction is normal. There is normal cervical lordosis. The cervical spine alignment is anatomic. The vertebral body height is preserved. The bone marrow and end plates demonstrate a normal MR appearance. The paraspinal soft tissues are unremarkable.There is no evidence of significant spinal canal stenosis or neural foraminal stenosis.Brain MRI:No evidence of acute ischemic or hemorrhagic lesion on the scan.Mild (about 3 mm) low lying of cerebellar tonsil, no change since prior scan.The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1. No interval change of some cervical spinal cord high signal intensity lesions since prior scan.2. No evidence of acute ischemic or hemorrhagic lesion.3. No change of mild low lying cerebellar tonsil as described above since prior scan.