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:: Volume 12, Issue 1 (Int J Mol Cell Med 2023) ::
Int J Mol Cell Med 2023, 12(1): 81-85 Back to browse issues page
Prenatal Diagnosis of Triploidy in Fetus with Unexpected Chromosomal Translocation of Maternal Origin
Ajinkya Jadhav 1, Yamini Jadhav2 , Vidya Bhairi2 , Rukaiya Ansari2 , Premkumar Torane2 , Krutika Patil2
1- Clinical Cytogenetics Department, Lilac Insights Pvt. Ltd., Navi Mumbai, (Maharashtra), India. , ajinkya@lilacinsights.com
2- Clinical Cytogenetics Department, Lilac Insights Pvt. Ltd., Navi Mumbai, (Maharashtra), India.
Abstract:   (751 Views)
Triploidy is a lethal chromosomal abnormality. Fetuses with triploid condition have a tendency to die in early conception and very few survive to term. In this study, we report the prenatal diagnosis of fetal triploidy with unexpected chromosomal translocation. A 27 years old women was referred to our clinical cytogenetic department due to history of previous conceptus with intrauterine growth retardation at 21-22 weeks of gestation and in present pregnancy, the quadruple marker screen test had suggested a high risk for Trisomy 18 with the risk >1:50. The study was performed on the amniotic fluid and peripheral blood samples received at the clinical cytogenetics department. The interphase FISH and conventional karyotype methods were followed. The prenatal diagnosis using an amniotic fluid sample found a triploid fetus with unexpected balanced chromosomal translocation: 69,XXX,t(2;9)(q11.2;p22)x2. Later the origin of translocation was confirmed by parental chromosomal study. Cytogenetic analysis showed the presence of translocation involving chromosome 2 and 9 in the mother which confirms the maternal origin of translocation in fetal triploidy. Prenatal diagnosis of fetal triploidy with balanced translocation of maternal origin is a rare finding. In present study, the triploidy arises from the failure to expel the second polar body. It is important to perform prenatal fetal imaging with ultrasound at 18-22 weeks to identify any fetal anomalies or intrauterine growth retardation which is associated with triploidy.
Keywords: Prenatal diagnosis, fetal abnormality, amniocentesis, balanced translocation, aneuploidy detection, genetic counseling
Full-Text [PDF 238 kb]   (486 Downloads)    
Type of Study: Case Report | Subject: Genetics & Disease
Received: 2022/01/24 | Accepted: 2023/08/20 | Published: 2023/09/19
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Jadhav A, Jadhav Y, Bhairi V, Ansari R, Torane P, Patil K. Prenatal Diagnosis of Triploidy in Fetus with Unexpected Chromosomal Translocation of Maternal Origin. Int J Mol Cell Med 2023; 12 (1) :81-85
URL: http://ijmcmed.org/article-1-1851-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 12, Issue 1 (Int J Mol Cell Med 2023) Back to browse issues page
International Journal of Molecular and Cellular Medicine (IJMCM) International Journal of Molecular and Cellular Medicine (IJMCM)
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