title: The sonographic detection of early first-trimester conjoined twins.
abstract: The transvaginal transducer may be utilized to manipulate juxtaposed early first-trimester twins in order to distinguish between conjoined and separate embryos.
authors.affiliation: Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Hospital, Pittsburgh, PA 15213, USA.
authors.forename: L M
authors.initials: LM
authors.lastname: Hill
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D011261:Pregnancy Trimester, First; D011272:Pregnancy, Multiple; D014428:Twins, Conjoined / Q000196:embryology*; D016216:Ultrasonography, Prenatal