The Hospital for Sick ChildrenThe University of TorontoTorontoOntario

The Hospital for Sick ChildrenThe University of TorontoTorontoOntario

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Nimmo G.A.M.,The Hospital for Sick ChildrenThe University of TorontoTorontoOntario | Guerin A.,The Hospital for Sick ChildrenThe University of TorontoTorontoOntario | Badilla-Porras R.,The Hospital for Sick ChildrenThe University of TorontoTorontoOntario | Stavropoulos D.J.,Hospital for Sick ChildrenUniversity of TorontoTorontoOntario | And 2 more authors.
American Journal of Medical Genetics, Part A | Year: 2015

The 16p12 region is particularly prone to genomic disorders due to the large number of low copy repeats [Martin et al., 2004; Nature 432:988-994]. We report two unrelated patients with de novo triplication of 16p12.1p12.3 who had developmental delay and similar facial features. Patient 1 is a 4-year-old male with a congenital heart anomaly, bilateral cryptorchidism, chronic constipation, and developmental delay. Patient 2 is a 12-year-old female with prenatally diagnosed hydronephrosis, hepatobiliary disease, failure to thrive, and developmental delay. Distinctive facial features common to both patients include short palpebral fissures, bulbous nose, thin upper vermillion border, apparently lowset ears, and large ear lobes. We compare the clinical manifestations of our patients with a previously reported patient with triplication of 16p12.2. © 2015 Wiley Periodicals, Inc.

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