Prenatal diagnosis, sonographic findings and molecular genetic analysis of a 46,XX/46,XY true hermaphrodite chimera

Prenatal Diagnosis
Chih-Ping ChenHsiao-En Cindy Chen

Abstract

To present the prenatal diagnosis, sonographic findings and, molecular genetic analysis of a 46,XX/46,XY true hermaphrodite chimera and to review the literature. Amniocentesis was performed at 22 weeks' gestation because of sonographic diagnosis of ambiguous genitalia. Initial amniocentesis, repeat amniocentesis, and cordocentesis revealed a mixture of 46,XX cells and 46,XY cells. Polymorphic DNA marker analysis using the fetal and parental blood was applied to investigate the genetic origin of the chimera. A 3,625-g baby was delivered at 37 weeks' gestation with clitoromegaly, prominent labia majora, fusion of the labia, and an orifice of the urogenital sinus. A lymphangioma was noted over the right arm and was excised at age 3 days. Extraembryonic tissues and the infant's skin were cytogenetically and molecularly studied. Initial amniocentesis, repeat amniocentesis, and cordocentesis revealed the karyotype of 46,XX[12]/46,XY[9], 46,XX[15]/46,XY[12], and 46,XX[27]/46,XY[15], respectively. The cytogenetic results of the extraembryonic tissues and skin were consistent with prenatal diagnosis. Informative sex chromosome and pericentromeric autosome markers demonstrated double paternal and single maternal genetic contributions. Pr...Continue Reading

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Citations

Aug 23, 2012·International Journal of Adolescent Medicine and Health·Jenara KristesashviliDonald E Greydanus
Nov 29, 2011·Clinics in Laboratory Medicine·Xu Li
Oct 10, 2006·Clinical Genetics·V MalanC Turleau
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Aug 31, 2010·American Journal of Medical Genetics. Part a·Johanna WinbergAnn Nordgren
Sep 13, 2011·American Journal of Medical Genetics. Part a·Paul A JamesFiona Norris
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Dec 7, 2007·Prenatal Diagnosis·Can LiaoDong-Zhi Li
Feb 14, 2006·Prenatal Diagnosis·Chih-Ping ChenChi-Yuan Tzen
Apr 18, 2019·Andrologia·Mahshad MagharehabedMehdi Totonchi
Dec 23, 2006·Human Reproduction·Wendy P RobinsonDeborah E McFadden
Mar 27, 2020·American Journal of Medical Genetics. Part a·Brandon N JohnsonDorret I Boomsma
Sep 23, 2006·International Journal of Gynecological Pathology : Official Journal of the International Society of Gynecological Pathologists·Urvashi SurtiTrevor Macpherson

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