Female, 30 years old, with paresthesias. Assess for demyelinating disease. Redemonstrated are numerous scattered small foci of T2 hyperintensity within the cerebral white matter, particularly affecting the thalami and brain stem, to a lesser degree the cerebral hemispheres. These are unchanged and there are no definite new lesions. Numerous punctate foci of enhancement which correlated to these lesions, particularly in the brainstem and posterior fossa, are less conspicuous than on the immediate prior examination and significantly less conspicuous than on the more remote study from August of 2014.No evidence of parenchymal edema or mass effect is seen. No acute intracranial hemorrhage or any abnormal extra axial fluid collection is detected. The ventricles are stable and normal in size. A small defect in the left parietal bone likely reflects prior instrumentation.
1. Continued interval improvement in the conspicuity and number of small enhancing foci within the brainstem and posterior fossa.2. The number and size of scattered T2 hyperintense white matter lesions are unchanged.