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Clinical and molecular characterization of a patient with a combination of a deletion and a duplication of 22q13 using array CGH

Author(s): Ochando I | Urbano A | Rubio J | Rueda J

Journal: The Application of Clinical Genetics
ISSN 1178-704X

Volume: 2012;
Issue: default;
Start page: 93;
Date: 2012;
Original page

Isabel Ochando,1 Antonio Urbano,1 Juana Rubio,2 Joaquín Rueda1,31Unidad de Genética, Hospital Clínica Vistahermosa, Alicante, 2Hospital Virgen de la Vega, Murcia, 3Departamento de Histología y Anatomía, Universidad Miguel Hernández, Alicante, SpainAbstract: Phelan–McDermid syndrome is caused by the loss of terminal regions of different sizes at 22q13. There is a wide range of severity of symptoms in patients with a 22q13 deletion, but these patients usually show neonatal hypotonia, global developmental delay, and dysmorphic traits. We carried out a clinical and molecular characterization of a patient with neonatal hypotonia and dysmorphic features. Array-based comparative genomic hybridization showed an 8.24 Mb terminal deletion associated with a 0.20 Mb duplication. Characterization of patients with Phelan–McDermid syndrome both clinically and at the molecular level allows genotype-phenotype correlations that provide clues to help elucidate the clinical implications.Keywords: 22q13 deletion, subtelomeric rearrangements, Phelan–McDermid syndrome, genotype–phenotype correlations
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