Cervical lesion surveillance; slight arm weakness. There is slight interval decrease in size of the T2 hyperintense, mildly expansile intramedullary lesion within the cervical spinal cord that extends from the level of C2 to C4. Indeed, the lesion measures up to 7 mm in width, previously 9 mm, although the craniocaudal extent is not significantly changed. Furthermore, the associated abnormal enhancement has resolved. The cervical spine alignment and appearance of the bone marrow are unchanged. The vertebral body heights are preserved. There is congenital narrowing of the cervical spine and superimposed multilevel degenerative spondylosis of the cervical spine. The previously demonstrated thyroid lesions are masked by the saturation bands on this exam.
1. Slight interval decrease in size of the indeterminate cervical spinal cord lesion with resolution of the abnormal enhancement. The differential diagnosis includes demyelinating and inflammatory conditions, or perhaps a neoplastic process with superimposed treatment effects.2. Unchanged congenital cervical spinal canal narrowing with superimposed multilevel cervical spondylosis. 