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Focal cortical dysplasia type 1 (PET and MRI)

Left temporal pole focal cortical dysplasia type 1 with subtle T2 hyperintensity and atrophy of left temporal pole (A) and mildly asymmetric FDG-PET hypometabolism on coregistration. (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.)