title: [Gray substance gone astray].
authors.affiliation: Nevrologisk avdeling Drammen sykehus.
authors.forename: Line
authors.initials: L
authors.lastname: Broch
authors.affiliation: Radiologisk avdeling Drammen sykehus.
authors.forename: Bård
authors.initials: B
authors.lastname: Bjørnarå
authors.affiliation: Nevrologisk avdeling Drammen sykehus.
authors.forename: Karl-Friedrich
authors.initials: KF
authors.lastname: Amthor
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D054091:Periventricular Nodular Heterotopia / Q000150:complications / Q000000981:diagnostic imaging*; D012640:Seizures / Q000209:etiology