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Prenatal diagnosis of Wolf–Hirschhorn syndrome: from ultrasound findings, diagnostic technology to genetic counseling

Prenatal diagnosis of Wolf–Hirschhorn syndrome: from ultrasound findings, diagnostic technology... Purpose Wolf–Hirschhorn syndrome (WHS) is a contiguous gene syndrome due to terminal chromosome 4p deletions. We explored prenatal diagnosis of WHS by ultrasound as well as karyotype and single nucleotide polymorphism array (SNP array) to characterize the structural variants of WHS prenatally. Methods Ten prenatal cases of WHS were evaluated for the indication of the invasive testing, the ultrasound features, and cytogenetic and microarray results. Results Eight cases were diagnosed by karyotyping and SNP array, while two cases were detected only by SNP array. Com- bining our cases with 37 prenatal cases from the literature, the most common sonographic features were IUGR (97.7%) and typical facial appearance (82.9%). Other less common phenotypes included renal hypoplasia (36.2%), cardiac malformation (29.8%), cleft lip and palate (25.5%), cerebral abnormalities (25.5%), skeletal anomalies (21.3%), and increased nuchal translucency/nuchal fold thickness (NT/NF) (19%). Conclusions The most common intrauterine phenotypes of WHS were severe IUGR and typical facial appearance with other less consistent ultrasound findings. Noninvasive prenatal testing (NIPT) is one very promising screening tool for WHS. SNP array can improve diagnostic precision for detecting WHS, especially for the cryptic aberrations that cannot be identified by the traditional karyotyping. Ectopic kidney may be a previously http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Gynecology and Obstetrics Springer Journals

Prenatal diagnosis of Wolf–Hirschhorn syndrome: from ultrasound findings, diagnostic technology to genetic counseling

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Medicine & Public Health; Gynecology; Obstetrics/Perinatology/Midwifery; Endocrinology; Human Genetics
ISSN
0932-0067
eISSN
1432-0711
DOI
10.1007/s00404-018-4798-1
Publisher site
See Article on Publisher Site

Abstract

Purpose Wolf–Hirschhorn syndrome (WHS) is a contiguous gene syndrome due to terminal chromosome 4p deletions. We explored prenatal diagnosis of WHS by ultrasound as well as karyotype and single nucleotide polymorphism array (SNP array) to characterize the structural variants of WHS prenatally. Methods Ten prenatal cases of WHS were evaluated for the indication of the invasive testing, the ultrasound features, and cytogenetic and microarray results. Results Eight cases were diagnosed by karyotyping and SNP array, while two cases were detected only by SNP array. Com- bining our cases with 37 prenatal cases from the literature, the most common sonographic features were IUGR (97.7%) and typical facial appearance (82.9%). Other less common phenotypes included renal hypoplasia (36.2%), cardiac malformation (29.8%), cleft lip and palate (25.5%), cerebral abnormalities (25.5%), skeletal anomalies (21.3%), and increased nuchal translucency/nuchal fold thickness (NT/NF) (19%). Conclusions The most common intrauterine phenotypes of WHS were severe IUGR and typical facial appearance with other less consistent ultrasound findings. Noninvasive prenatal testing (NIPT) is one very promising screening tool for WHS. SNP array can improve diagnostic precision for detecting WHS, especially for the cryptic aberrations that cannot be identified by the traditional karyotyping. Ectopic kidney may be a previously

Journal

Archives of Gynecology and Obstetrics – Springer Journals

Published: May 28, 2018

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