title: Sonographic features of fetal trisomy 18 at 13 and 14 weeks: four case reports.
abstract: Fetal trisomy 18 is the second most common multiple malformation syndrome. We present four cases of trisomy 18 with multiple sonographic abnormalities at 13 and 14 weeks of gestation. These cases demonstrated that fetal hand deformities can be a tell-tale sign of trisomy 18 with or without increased nuchal translucency at this gestation.
authors.affiliation: Department of Obstetrics and Gynaecology, University of Hong Kong, Tsan Yuk Hospital, China.
authors.forename: Y H
authors.initials: YH
authors.lastname: Lam
authors.forename: M H
authors.initials: MH
authors.lastname: Tang
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D000032:Abortion, Therapeutic; D000328:Adult; D002681:China; D002887:Chromosomes, Human, Pair 18; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D005865:Gestational Age; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging; D006554:Hernia, Umbilical / Q000000981:diagnostic imaging; D006801:Humans; D009056:Mouth Abnormalities / Q000000981:diagnostic imaging; D011247:Pregnancy; D011295:Prenatal Care; D014314:Trisomy / Q000175:diagnosis*; D016216:Ultrasonography, Prenatal; D014953:Wrist / Q000002:abnormalities / Q000000981:diagnostic imaging