3 year-old female with seizure. Redemonstrated are several foci of T2 hyperintensity in the bilateral frontal and left parietal cortical and subcortical region as well as along radial glial lines. As before, there are several small subependymal nodules in the subependymal bilateral lateral ventricles. None obstruct the foramen of Monroe. There appears mild thinning of the posterior body of the corpus callosum, unchanged. The midline structures and cranial-cervical junction are otherwise normal. The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, midline shift, intra or extra-axial fluid collection/hemorrhage, or restricted diffusion/acute ischemia. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1.Redemonstrated are intracranial manifestations of tuberous sclerosis without significant interval change.2.If future MR imaging is contemplated, gadolinium enhancement would be recommended to better assess for subependymal giant cell astrocytomas, although on the current exam no subependymal nodule approaches the foramen of Monroe.