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Whole exome sequencing identifies a novel FRAS1 mutation and aids in vitro fertilization with preimplantation genetic diagnosis in Fraser syndrome

Taiwanese Journal of Obstetrics and Gynecology, ISSN: 1028-4559, Vol: 61, Issue: 3, Page: 521-524
2022
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  • 8
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Metric Options:   Counts1 Year3 Year

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Case Description

To demonstrate the picture of a woman who had three times of pregnancies but fetuses were complicated with Fraser syndrome, a rare genetic disorder with multiple congenital anomalies. Here are three complicated pregnancies with predominant features of severe oligohydramnios and other variable intrafamilial presentations. We made a definite diagnosis, Fraser syndrome, with the assistance of whole exome sequencing (WES) via umbilical blood of the second and third fetus. The provision of a preimplantation diagnosis helped contribute a healthy newborn in this family. This paper provides insights into obscure antenatal presentations of Fraser syndrome with intrafamilial variance. Clinical uncertainty at the fetal stage suggests the role of WES to reach a final diagnosis, and a preimplantation diagnosis is applicable to avoid recurrence of genetic disorders in subsequent pregnancies.

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