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  • Title: Partial trisomy 8p (8p11.2-->pTER) and deletion of 13q (13q32-->qTER): case report.
    Author: Yeşilyurt A, Dilli D, Oguz S, Dilmen U, Altug N, Candemir Z.
    Journal: Genet Couns; 2011; 22(1):35-40. PubMed ID: 21614986.
    Abstract:
    We report a female infant with partial trisomy 8p (8p11.2-->pter) and deletion of 13q (13q32-->qter). She was born with mild hypotonia, intrauterine growth retardation, microcephaly, micrognathia, large low set ears, pectus excavatum, anteriorly placed anus, and bilateral clinodactyly. Echocardiography showed left ventricular hypertrophy, bicuspid aortic valve, dilatation of the aorta and pulmonary artery, and prolapse of atrio-venticular valve leaflets. Cytogenetic investigation of her sister and her father showed that the altered region resulted from a balanced translocation between the part of the long arm of chromosome 13 and short arm of chromosome 8. In partial trisomy 8p, the clinical picture of the patients comprises hypotonia, structural brain abnormalities, facial anomalies including a large mouth with a thin upper lip, a high arched palate, a broad nasal bridge, an abnormal maxilla or mandible, malformed, low set ears, and orthopedic anomalies. Although patients with proximal deletions of 13q that do not extend into band q32 have mild to moderate mental and growth delays with variable minor anomalies, patients with more distal deletions including at least part of band q32 usually have major malformations such as retinoblastoma, mental-motor growth retardation, malformation of brain and heart, anal atresia, and anomalies of the face and limbs. To our knowledge partial trisomy 8p and partial monosomy of 13q have not been reported previously in the same person.
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