title: Pre- and postnatal ultrasound and magnetic resonance imaging of intracranial extra-axial glioneuronal heterotopia.
abstract: Glioneuronal heterotopias are rare malformations composed of differentiated derivates of neuroectodermal tissue that include disorganized neuronal and glial cells. They are typically located extracranially. The nasal cavity represents the most common location. Glioneuronal heterotopias have also been reported in the orbit, pharynx, middle ear, neck and thorax. Rarely, glioneuronal heterotopias may be located intracranially. We are aware of only 15 patients reported with intracranial extra-axial glioneuronal heterotopia (IEGH). We present the prenatal ultrasound and MRI as well as the matching postnatal CT, conventional MRI and diffusion tensor imaging findings of a newborn with an infratentorial IEGH accompanied with craniofacial anomalies.
authors: Division of Pediatric Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Hospital, Baltimore, MD 21287-0842, USA.
authors: Avner
authors: A
authors: Meoded
authors: Sifa
authors: S
authors: Turan
authors: Chris
authors: C
authors: Harman
authors: Andrea
authors: A
authors: Poretti
authors: James
authors: J
authors: Zinreich
authors: Thierry A G M
authors: TA
authors: Huisman
mesh_terms: D000328:Adult; D001921:Brain / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009421:Nervous System Malformations / Q000000981:diagnostic imaging / Q000473:pathology; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012886:Skull / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D016216:Ultrasonography, Prenatal