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  • Title: Prenatal diagnosis of skeletal dysplasias using a targeted skeletal gene panel.
    Author: Zhou X, Chandler N, Deng L, Zhou J, Yuan M, Sun L.
    Journal: Prenat Diagn; 2018 Aug; 38(9):692-699. PubMed ID: 29907962.
    Abstract:
    OBJECTIVE: This study aimed to perform an accurate and precise diagnosis for fetuses with suspected skeletal anomalies based on an incomplete and limited ultrasound phenotype. METHODS: Proband-only targeted skeletal gene panel sequencing was performed on 12 families who had fetuses with suspected skeletal anomalies based on ultrasound evaluations at a mean gestational age of 24 weeks and 3 days. The fetuses all had normal standard genetic testing yield (karyotyping and microarray). RESULTS: In 10 of 12 fetuses, panel sequencing provided a diagnosis or possible diagnosis with identification of variants in the following genes: FGFR3, COL1A2, IHH, COL2A1, and DYNC2H1. Two cases revealed novel variants in COL2A1 and DYNC2H1. CONCLUSIONS: Our study suggests that targeted skeletal gene panel sequencing is highly sensitive for prenatal diagnosis of fetuses presenting with unexpected ultrasound findings suggestive of a skeletal dysplasia.
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