Prenatal diagnosis of paternal uniparental disomy for chromosome 14 using a single-nucleotide-polymorphism-based microarray analysis: A case report
Journal
Journal of the Formosan Medical Association
Journal Volume
118
Journal Issue
3
Pages
739-742
Date Issued
2019
Author(s)
Abstract
Paternal uniparental disomy 14 (UDP(14)pat) is a rare imprinting disorder with a set of unique neonatal clinical features documented, including craniofacial abnormalities, thoracic and abdominal wall defects, and polyhydraminos. To date, no studies focus on prenatal diagnosis of uniparental disomy have been published. We report a case of a fetus with abnormal ultrasound features at 18 weeks of gestation and normal karyotype result. Subsequent Single nucleotide polymorphism (SNP)-based Affymetrix 750K Microarray analysis revealed the complete loss of heterozygosity for chromosome 14, identifying a case of uniparental disomy. Postmortem examination of the aborted fetus at 21 weeks, coupled with further Affymetrix 750K microarray analysis on the parents, confirmed the diagnosis of parental uniparental disomy for chromosome 14.
SDGs
Publisher
Elsevier B.V.
Type
journal article