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Tuberous sclerosis (MRI and FDG-PET)

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Tuberous sclerosis complex in a 5-year-old female with T2 hyperintensity in multiple areas (A). The FDG-PET hypometabolism in the right temporal lobe extends past the tuber, suggesting an epileptogenic zone that, when resected, resulted in good seizure control. (Image from: Lee KK, Salamon N. [18F] fluorodeoxyglucose-positron-emission tomography and MR imaging coregistration for presurgical evaluation of medically refractory epilepsy. AJNR Am J Neuroradiol 2009;30:1811-6.)