Male, 50 years old, with paresthesias and dysesthesias with new onset muscle cramps in the right leg, status post cervical fusion from C3 through C6 in 2009. Numerous scattered small foci of T2 hyperintensity are demonstrated within the periventricular and subcortical white matter. The overall size and number of these lesions do not appear to have changed significantly from the prior examination.No evidence of parenchymal edema or mass effect is detected. A focus of susceptibility is evident along the right caudate head which is unchanged and compatible with chronic blood products or mineralization.No abnormal extra axial fluid collections are detected. The ventricular system is patent and within normal limits including mild asymmetry at the level of the frontal horns.On postcontrast images, no pathologic parenchymal or extra-axial enhancement is detected.Bone marrow signal characteristics are within normal limits. Minimal mucosal thickening is evident within the ethmoid air cells. Artifact related to orthopedic instrumentation is partially visualized in the upper cervical spine.
1.Scattered small foci of T2 signal abnormality are redemonstrated in the subcortical and periventricular white matter. The size and number of these lesions have not significantly changed. They are nonspecific and could reflect the sequelae of prior inflammation, gliosis, demyelination or a vascular process.2.No new or acute intracranial abnormalities which would account for the patient's new symptoms.