 The lobulated enhancing mass with areas of susceptibility effect and cystic components in the left lateral ventricle, appears minimally more prominent when compared to the prior examination, measuring 33 mm, previously 32 mm. There is persistent mild vasogenic edema in the surrounding brain parenchyma. There is also an enhancing mass within the right lateral ventricle, which measures up to approximately 10 mm, previously 8 mm. The lateral ventricles remain mildly prominent, unchanged from prior examination. There is no significant interval change in numerous foci of subcortical T2 hyperintensity, some of which demonstrate enhancement. There is no evidence of intracranial hemorrhage or acute infarct. There is a right cerebellar hemisphere developmental venous anomaly. There is no midline shift or herniation. The skull and extracranial soft tissues are unremarkable.
1. There is minimal increase in size of the bilateral lateral ventricular subependymal giant cell astrocytomas. 2. Other stigmata of tuberous sclerosis are not significantly changed.3. Interval resolution of the left tympanomastoid fluid.