Journal
AMERICAN JOURNAL OF MEDICAL GENETICS PART A
Volume 182, Issue 2, Pages 289-292Publisher
WILEY
DOI: 10.1002/ajmg.a.61428
Keywords
Donnai-Barrow syndrome; prenatal diagnosis; whole exome sequencing (WES)
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Donnai-Barrow syndrome (DBS) is an autosomal recessive disorder characterized by typical craniofacial features, vision and hearing loss, intellectual disability, agenesis of the corpus callosum (ACC), congenital diaphragmatic hernia (CDH), and omphalocele. This condition is associated with loss-of-function mutations in the LRP2 gene. Few cases have been described in the literature. In our case, CDH and ACC were prenatally diagnosed by ultrasound, and the fetus was the product of a first-degree union. Single-nucleotide polymorphism-microarray showed large regions of homozygosity. Whole exome sequencing (WES) was performed and revealed a homozygous frameshift pathogenic variant in LRP2 (c.6978dupG). Here, we present a case of DBS, which diagnosed prenatally via WES in a fetus with CDH and ACC.
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