title: Congenital central nervous system anomalies.
abstract: Magnetic resonance imaging, because of its multiplanar capabilities and exquisite contrast differentiation, has risen above all other forms of in vivo imaging for the classification and determination of congenital central nervous system (CNS) anomalies. We briefly discuss pertinent aspects of CNS embryology and, using a recently proposed classification of central nervous system anomalies, present examples of a spectrum of abnormalities that one may encounter in practice. These anomalies include: the Chiari malformations, encephaloceles, holoprosencephaly, septooptic dysplasia, Dandy-Walker variant, hydranencephaly, phakomatoses, schizencephaly, agyria or pachygyria, and dysgenesis of the corpus callosum.
authors.affiliation: Department of Radiology, Geisinger Medical Center, Danville, PA 17822.
authors.forename: L B
authors.initials: LB
authors.lastname: Poe
authors.forename: L L
authors.initials: LL
authors.lastname: Coleman
authors.forename: F
authors.initials: F
authors.lastname: Mahmud
mesh_terms: D002490:Central Nervous System / Q000002:abnormalities*; D002493:Central Nervous System Diseases / Q000151:congenital* / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D009436:Neural Tube Defects / Q000175:diagnosis*