title: Hydranencephaly owing to twin-twin transfusion: serial fetal ultrasonography and magnetic resonance imaging findings.
abstract: We report a newborn girl with hydranencephaly. In the setting of a monochorionic twin pregnancy, one twin's demise was detected by ultrasonography at 18 weeks of gestation, apparently the result of a twin-twin transfusion. In the surviving twin, the evolution of ventriculomegaly, first noted at 18 weeks, to hydranencephaly at 27 weeks is documented by serial sonograms. These findings were confirmed with fetal and postnatal magnetic resonance imaging.
authors.affiliation: Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Lucile Packford Children's Hospital at Stanford, California 94305-5235, USA. jhahn@stanford.edu
authors.forename: Jin S
authors.initials: JS
authors.lastname: Hahn
authors.forename: Ann J
authors.initials: AJ
authors.lastname: Lewis
authors.forename: Patrick
authors.initials: P
authors.lastname: Barnes
mesh_terms: D000328:Adult; D005260:Female; D005313:Fetal Death; D005330:Fetofetal Transfusion; D006801:Humans; D006832:Hydranencephaly / Q000209:etiology* / Q000473:pathology*; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D014427:Twins; D016216:Ultrasonography, Prenatal