title: Prenatal diagnosis of trisomy 21 in a fetus with an enlarged cisterna magna.
authors.forename: T-H
authors.initials: TH
authors.lastname: Lai
authors.forename: Y-M
authors.initials: YM
authors.lastname: Cheng
authors.forename: F-M
authors.initials: FM
authors.lastname: Chang
mesh_terms: D002946:Cisterna Magna / Q000000981:diagnostic imaging* / Q000196:embryology*; D004314:Down Syndrome / Q000000981:diagnostic imaging*; D005260:Female; D006257:Head / Q000196:embryology; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal