title: [Diagnosis of a trisomy 21 in the first pregnancy trimester. Value of trophoblast sampling].
abstract: The authors report a diagnosis of trisomy 21 in the 11th week following the last menstrual period in a patient of 40 years of age. This was made by chorion villi aspiration and direct cytogenetic examination.
authors.forename: A
authors.initials: A
authors.lastname: Treisser
authors.forename: E
authors.initials: E
authors.lastname: Flori
authors.forename: M
authors.initials: M
authors.lastname: Sussmann
authors.forename: J V
authors.initials: JV
authors.lastname: Ruch
authors.forename: R
authors.initials: R
authors.lastname: Renaud
mesh_terms: D000328:Adult; D002824:Chorionic Villi / Q000032:analysis*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007621:Karyotyping; D008423:Maternal Age; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis
vernacular_title: Diagnostic d'une trisomie 21 au premier trimestre de la grossesse. Intérêt des prélèvements trophoblastiques.