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The utility of exome sequencing for fetal pleural effusions
Author(s) -
Jelin Angie C.,
Sobreira Nara,
Wohler Elizabeth,
Solomon Benjamin,
Sparks Teresa,
Sagaser Katelynn G,
Forster Katherine R.,
Miller Jena,
Witmer P. Dane,
Hamosh Ada,
Valle David,
Blakemore Karin
Publication year - 2020
Publication title -
prenatal diagnosis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.956
H-Index - 97
eISSN - 1097-0223
pISSN - 0197-3851
DOI - 10.1002/pd.5650
Subject(s) - exome sequencing , etiology , medicine , proband , candidate gene , genetic testing , exome , pathology , bioinformatics , genetics , mutation , biology , gene
Objective We sought to evaluate the performance of exome sequencing (ES) in determining an underlying genetic etiology for cases of fetal pleural effusions. Study design We examined a prospective cohort series of fetal pleural effusions visualized sonographically between 1 April 2016 and 31 August 2017. Fetal pleural effusions attributed to twin sharing, anemia, or structural anomalies were excluded, as were all cases with a genetic diagnosis established by karyotype or chromosomal microarray analysis. The remaining cases with pleural effusions of unclear etiology were offered ES. ES was performed by clinical sequencing and/or sequencing under the Baylor‐Hopkins Center for Mendelian Genomics' (BHCMG) research platform. All cases were evaluated for novel genes or phenotypic expansion of disease‐causing genes. Results ES was performed on six probands affected by pleural effusions. A pathogenic variant was identified in one case (16.7%). Four additional cases had variants of uncertain significance (VUS) in candidate genes of pathological interest. Neither clinical nor candidate genes were evident in the final case. Conclusion ES should be considered in the evaluation of prenatally detected idiopathic pleural effusions when other diagnostic workup for a genetic etiology has failed.