Female, 56 years old, with multiple sclerosis. Multiple T2/FLAIR hyperintense lesions are again seen compatible with demyelinating disease involving the juxtacortical and periventricular white matter and to a lesser degree the brainstem and posterior fossa. Differences in technique between exams make accurate comparison difficult. However, it does appear that lesions have increased in size and number. For example, an enhancing lesion in the right frontal periventricular white matter (image 50 series 601) was not clearly present on the prior examination. In addition, ill-defined periventricular hyperintensity in the periatrial regions is diffusely more prominent than on prior. A number of enhancing lesions are seen which correlate to new areas of T2/FLAIR hyperintensity.Cerebral volume is grossly preserved. No evidence of edema or mass effect is detected. No abnormal extra-axial collections are seen. The ventricles remain normal in size and morphology.
Interval progression of demyelinating lesions.