 Again demonstrated are numerous ill-defined regions of cortical/subcortical T2 hyperintensity in both cerebral hemispheres without interval change in size or number of lesions. The posterior fossa is spared. None of these lesions demonstrates any definite enhancement.Multiple periventricular nodules are again noted and not significantly changed in size or number. These show intrinsic T1 hyperintensity on precontrast imaging and no convincing additional signal change after contrast is administered. Some of these are associated with strong susceptibility which correlates with mineralization/calcification seen on prior CT.There is no evidence of parenchymal mass effect. No intracranial hemorrhage or abnormal extra-axial fluid is present. Ventricles are normal in size. No evidence of restricted diffusion. Subcentimeter right parotid gland T1 hypointense foci which demonstrate contrast enhancement; findings most likely represent lymph nodes.
Stable multiple cortical/subcortical and subependymal lesions compatible cortical tubers and subenedymal nodules which are stigmata for tuberous sclerosis.