Fig 2.

FCD type Ib in a 23-year-old patient with a history of seizures, onset at 14 years of age. A, T1-weighted axial image has normal findings. B and C, PET and PET-T1WI fused images (arrow) indicate a well-defined area of focal hypometabolism in the left temporal lobe region. D and E, ASL and ASL-T1WI fused images (arrow) show hypoperfusion in the same brain region. After a left anterior temporal lobectomy, histopathologic findings showed FCD type Ib. After a postoperative follow-up of at least 1 year, the patient was classified as having an Engel class I outcome.