title: Chorionicity inaccurately predicted by early ultrasound: a case report.
abstract: Ultrasound has been found to be extremely accurate in diagnosing the chorionicity of multiple gestations. Prenatal counselling and/or planning for selective termination is most often based on the sonographic prediction of chorionicity. We present a case of triplet pregnancy in which early sonographic prediction of chorionicity did not match the pathological diagnosis at delivery.
authors.affiliation: Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Ecker
authors.forename: R A
authors.initials: RA
authors.lastname: Filly
authors.forename: C
authors.initials: C
authors.lastname: Zaloudek
authors.forename: R R
authors.initials: RR
authors.lastname: Wright
authors.forename: B
authors.initials: B
authors.lastname: Drexler
authors.forename: J D
authors.initials: JD
authors.lastname: Goldberg
mesh_terms: D000328:Adult; D000650:Amnion / Q000000981:diagnostic imaging; D002823:Chorion / Q000000981:diagnostic imaging*; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D010062:Ovulation Induction; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014310:Triplets; D016216:Ultrasonography, Prenatal