title: Prenatal diagnosis of supernumerary ring chromosome 1: case report and review of the literature.
abstract: A supernumerary ring chromosome was found on amniocentesis performed for advanced maternal age. A review of the literature found 34 reports of supernumerary ring chromosome I which are compared to our case.
authors: Georgetown University Hospital, Department of Obstetrics and Gynecology, Washington, District of Columbia 20007, USA. Andrea.M.Wray@questdiagnostics.com
authors: A M
authors: AM
authors: Wray
authors: T R
authors: TR
authors: Dennis
authors: A
authors: A
authors: Ghidini
authors: B
authors: B
authors: Gorman
authors: B R
authors: BR
authors: Haddad
authors: J M
authors: JM
authors: Meck
mesh_terms: D000025:Abortion, Eugenic; D000328:Adult; D000649:Amniocentesis; D002869:Chromosome Aberrations; D002878:Chromosomes, Human, Pair 1 / Q000235:genetics*; D005260:Female; D005817:Genetic Counseling; D005819:Genetic Markers / Q000235:genetics*; D005820:Genetic Testing; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007621:Karyotyping; D008297:Male; D008423:Maternal Age; D011247:Pregnancy; D012303:Ring Chromosomes
chemical_list: D005819:Genetic Markers