 There are multiple unchanged supratentorial cortical and subcortical regions of T2 hyperintensity. There is an unchanged 5 mm focus of T2 hyperintensity and susceptibility effect within one of these regions in the right superior parietal lobule that may represent mineralization or old hemorrhage. There are numerous subependymal mildly enhancing masses. Exact comparison is difficult due to differences in technique, however, the largest of these located within the atrium of the right lateral ventricle has mildly increased in size, measuring 17 x 17 mm, previously 15 x 15 mm. The second largest located within the left lateral ventricular body near the foramen of Monro has also mildly grown, measuring 9 x 9 mm, previously 8 x 8 mm. A previously measured subependymal mass within the right lateral ventricular body near the foramen of Monro is unchanged, measuring 4 x 4 mm. The ventricles and basal cisterns are unchanged in size and configuration. There is no evidence of acute intracranial hemorrhage or acute infarct. There is no midline shift or herniation. The major cerebral flow voids are intact. The skull, paranasal sinuses, and scalp soft tissues are unremarkable.
Stigmata of tuberous sclerosis including unchanged cortical/subcortical tubers and multiple subependymal masses, the largest of which have mildly increased in size (about 1mm).