title: Enlarged cisterna magna in trisomy 18: prenatal ultrasonographic diagnosis.
abstract: Ultrasonographic visualization of an enlarged cisterna magna was the initial clue that led to the prenatal diagnosis of trisomy 18 in five patients. Prenatal diagnosis of trisomy 18, a lethal defect, is important for proper patient counseling and management.
authors.affiliation: Department of Diagnostic Radiology, Oregon Health Sciences University, Portland 97201.
authors.forename: A S
authors.initials: AS
authors.lastname: Thurmond
authors.forename: D W
authors.initials: DW
authors.lastname: Nelson
authors.forename: R I
authors.initials: RI
authors.lastname: Lowensohn
authors.forename: W P
authors.initials: WP
authors.lastname: Young
authors.forename: L
authors.initials: L
authors.lastname: Davis
mesh_terms: D002531:Cerebellum / Q000473:pathology; D002887:Chromosomes, Human, Pair 18; D002946:Cisterna Magna / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014314:Trisomy; D014463:Ultrasonography