title: 'Double cortex' sign on FDG-PET/CT in diffuse band heterotopia.
abstract: F-18 Fluorodeoxyglucose (FDG) Positron emission tomography/Computed Tomography (PET/CT) has come to play an increasingly important role for the pre-surgical evaluation of drug resistant epilepsy and complements Magnetic Resonance Imaging (MRI) in the evaluation of grey matter heterotopias. This case illustrates the characteristic pattern of metabolic abnormality in diffuse band heterotopia (DBH) which is otherwise called double cortex syndrome. The presence of metabolic activity in the heterotopic inner cortical band and in the overlying true cortex gives rise to the 'double cortex' sign on FDG-PET, concurrent CT provides a good anato-metabolic coregistration.
authors.affiliation: Department of Nuclear Medicine and PET, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Madhavi
authors.initials: M
authors.lastname: Tripathi
authors.affiliation: Department of Neurology (Cardiothoracic and Neurosciences Centre), All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Manjari
authors.initials: M
authors.lastname: Tripathi
authors.affiliation: Department of Nuclear Medicine and PET, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Ganesh
authors.initials: G
authors.lastname: Kumar
authors.affiliation: Department of Nuclear Medicine and PET, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Arun
authors.initials: A
authors.lastname: Malhotra
authors.affiliation: Department of Nuclear Medicine and PET, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Chandra Sekhar
authors.initials: CS
authors.lastname: Bal
keywords: Band heterotopia; F-18 FDG; PET/CT; epilepsy