Vol 85, No 7 (2014)
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Prenatal diagnosis of craniosynostosis (compound Saethre-Chotzen syndrome phenotype) caused by a de novo complex chromosomal rearrangement (1; 4; 7) with a microdeletion of 7p21.3–7p15.3, including TWIST1 gene – a case report

Diana Massalska, Julia Bijok, Anna Kucińska-Chahwan, Aleksander Jamsheer, Joanna Bogdanowicz, Grzegorz Jakiel, Tomasz Roszkowski
DOI: 10.17772/gp/1768
Ginekol Pol 2014;85(7).

Abstract

Craniosynostosis (a premature fusion of the cranial sutures) occurs with a frequency of 1 in 2100–2500 births and in over 40% cases is caused by known genetic factors – either single gene mutations or chromosomal rearrangements. Cases caused by complex chromosomal abnormalities are uncommon and likely associated with compound phenotype. Saethre–Chotzen syndrome (SCS) [#101400] is caused by TWIST1 gene haploinsufficiency. Its phenotype includes uni– or bicoronal synostosis, short stature, facial dysmorphism and variable anomalies of the hands and feet. Due to its poor sonographic manifestation a prenatal diagnosis of SCS is challenging. We report a case of a prenatally detected craniosynostosis (compound Saethre–Chotzen syndrome phenotype) caused by a de novo complex chromosomal rearrangement (1; 4; 7) with a microdeletion of 7p21.3–7p15.3, including TWIST1 gene.

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