Female, 14 years old, with tuberous sclerosis, evaluate subependymal giant cell astrocytoma and cortical tubers for change. Artifact from presumed orthodontic braces renders the susceptibility weighted and diffusion weighted images nondiagnostic. The other sequences are less severely affected.Multiple areas of cortical and subcortical T2 hyperintensity are redemonstrated without significant interval change in size. Radial migration lines are seen traversing the cerebral white matter. Multiple subependymal nodules are also seen, most of which demonstrate susceptibility indicating calcification and some degree of enhancement. A lesion at the right foramen of Monro measures approximately 10 x 10 x 5 mm, previously 11 x 10 x 7 mm. None of the additional subependymal lesions appears to have changed significantly in size. No new lesions are appreciated. Ventricular size and morphology are within normal limits. A small area of prominent CSF along the right frontal lobe is unchanged and could reflect anatomic variation or a small arachnoid cyst.
Stigmata of tuberous sclerosis are redemonstrated without significant interval change including numerous cortical and subependymal tubers. A potential subependymal giant cell astrocytoma at the right foramen of Monro likewise shows no evidence of progression.