Detection of trisomy 9 mosaicism in the second trimester screening by abnormal level of biochemical markers
Zohre Salari,
Arman Moradi,
Mahdiyeh Moudi
et al.
Abstract:Trisomy 9 is a rare chromosomal abnormality that occurs in both mosaic and non-mosaic states. The present study reports a case of mosaic trisomy 9 detected during pregnancy in a 41-year-old woman in the second trimester screening. Maternal serum screening results were used to diagnose a chromosomal abnormality in utero. The results were validated by karyotyping. High levels of alpha-fetoprotein and low levels of unconjugated estriol (uE3), human chorionic gonadotropin (hCG), and inhibin A indicate a high risk … Show more
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