[Prenatal diagnosis of a fetus with Mowat-Wilson syndrome].

OBJECTIVE:To explore the genetic basis for a fetus featuring increased nuchal thickness. METHODS:Routine G-banding karyotyping and single nucleotide polymrophism array were carried out to detect genomic copy number variations (CNVs) in the fetus. RESULTS:The fetus was found to harbor a heterozygous 3.8 Mb deletion in the 2q22.2-q22.3 region encompassing the ZEB2 gene, which is closely associated with Mowat-Wilson syndrome (MWS). CONCLUSION:Haploinsufficiency of the ZEB2 gene may predispose to MWS. Lack of knowledge regarding to the ultrasonographic features of MWS may lead to misdiagnosis of the syndrome.