Male, 63 years old, with multiple sclerosis, recent Wallenberg's syndrome and left-sided weakness. Evaluate for new MS lesions. Multiple T2 hyperintense lesions are evident prominently within the periventricular white matter appearing similar to the prior examination. No new or growing cerebral lesions are seen. A lesion noted on the prior examination within the left posterolateral medulla is barely detectable if at all on the present examination. Mild generalized parenchymal volume loss is seen. No evidence of edema or mass effect is detected. No abnormal extra-axial collections are noted. Ventricular size morphology are unchanged.
1.Several scattered lesions compatible with multiple sclerosis are redemonstrated showing no significant interval change in size. No new lesions are detected.2.A lesion detected on the prior examination within the left posterolateral medulla is less conspicuous than previously seen.