title: [Classic maternal phenylketonuria and sonographic evidence of fetal trisomy 21: first description].
abstract: Phenylketonuria is the best known pathology of amino acid metabolism. Presented here is the case of a 23-year-old prima gravida with phenylketonuria since birth. After delivery, her child was diagnosed with free trisomy 21. Abnormal sonographic signs such as bilateral hydrothorax, polyhydramnion, and short femura under the 10th percentile could be demonstrated in the ultrasound scan at 33 weeks of gestation. Regularly measured maternal phenylalanine levels during the complete pregnancy as well as preconceptionally were always under the embryopathic cutoff point of 1 200 micromoles/L (20 mg/L). An association seems unlikely. This is the first description of such a constellation according to a literature search (PubMed, Cochrane Library).
authors.affiliation: Städt. Kliniken Mönchengladbach, Betriebsstätte: Elisabeth Krankenhaus Rheydt, Frauenklinik, Mönchengladbach. harald.lehnen@sk-mg.de
authors.forename: H
authors.initials: H
authors.lastname: Lehnen
authors.forename: M
authors.initials: M
authors.lastname: Vinke
authors.forename: C
authors.initials: C
authors.lastname: Schwennicke
authors.forename: U
authors.initials: U
authors.lastname: Pascheberg
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000000981:diagnostic imaging* / Q000235:genetics; D005260:Female; D006801:Humans; D006876:Hydrothorax / Q000000981:diagnostic imaging; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D007752:Obstetric Labor, Premature / Q000000981:diagnostic imaging; D010649:Phenylalanine; D010661:Phenylketonurias / Q000000981:diagnostic imaging* / Q000235:genetics; D006831:Polyhydramnios / Q000000981:diagnostic imaging; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging* / Q000235:genetics; D011263:Pregnancy Trimester, Third; D011295:Prenatal Care; D016216:Ultrasonography, Prenatal
chemical_list: D010649:Phenylalanine