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Saint-Germain-en-Laye, France

Popowski T.,Fetal Pathology | Popowski T.,University of Versailles | Molina-Gomes D.,Fetal Pathology | Loeuillet L.,Fetal Pathology | And 4 more authors.
European Journal of Medical Genetics | Year: 2012

Duplication 17p11.2 (Potocki-Lupski syndrome (PTLS) MIM# 610883) is a genomic disorder with an estimated incidence of 1 in 25,000 births. As for other genomic disorders this duplication is typically de novo and is not associated with advanced maternal age or advanced paternal age. Herein we describe a prenatal diagnosis of duplication 17p11.2. This diagnosis was not suspected as the prenatal ultrasound findings were non-specific; however, BACs-on-Beads™ technology and array comparative genomic hybridization (aCGH) confirmed the common ~3.7 Mb duplication. Evaluation of the foetus following termination of pregnancy revealed mildly dysmorphic features as well as congenital anomalies not previously reported in PTLS, specifically left pulmonary isomerism, an abnormally positioned left coronary orifice and nodular cerebellar heterotopia. This report exemplifies the utility of prenatal testing using new genomic technologies even when there are no multiple anomalies on foetal ultrasound. This report also exemplifies the utility of foetal autopsy in the identification of "occult" congenital anomalies. © 2012 Elsevier Masson SAS. Source

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