Williams-beuren region duplication syndrome - CISMeF
Williams-beuren region duplication syndromeOMIM Phenotype
Preferred Label : Williams-beuren region duplication syndrome;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : Wbs duplication syndrome; Chromosome 7q11.23 duplication syndrome; Somerville-van der aa syndrome;
Included titles and symbols : Wbs triplication syndrome; Chromosome 7q11.23 triplication syndrome;
Description : The chromosome 7q11.23 duplication syndrome is a multisystem developmental disorder
with variable manifestations, most commonly speech delay and mild craniofacial anomalies,
and an increased incidence of congenital anomalies such as heart defects, diaphragmatic
hernia, and cryptorchidism. Many patients have cognitive defects ranging from mental
retardation to autism, although some have normal cognitive abilities (summary by Van
der Aa et al., 2009).;
Inheritance : Autosomal dominant;
Molecular basis : Caused by duplication of 1.5 to 1.8 Mb on chromosome 7q11.23;