1. De Novo ring chromosome 11 and non-reciprocal translocation of 11p15.3-pter to 21qter in a patient with congenital heart disease.
- Author
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Ying Peng, Ruiyu Ma, Yingjie Zhou, Yan Xia, Juan Wen, Yanghui Zhang, Ruolan Guo, Haoxian Li, Qian Pan, Rui Zhang, Chengyuan Tang, Desheng Liang, and Lingqian Wu
- Subjects
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CHROMOSOMES , *CHROMOSOMAL translocation , *CONGENITAL heart disease , *SINGLE nucleotide polymorphisms , *IN situ hybridization , *THERAPEUTICS - Abstract
Background: Ring chromosome 11[r (11)] is a rare chromosomal abnormality that forms when both arms of chromosome 11 break, and then reunite with each other. Once a ring chromosome forms, the distal ends of both arms of the chromosome are usually lost. Case Presentation: We reported a 12 years old girl patient with congenital heart disease and distinctive facial features. Cytogenetic and molecular analyses using standard G-banding, fluorescence in situ hybridization and Single nucleotide polymorphism array were performed to identify genetic causes in the patient. The patient carried r(11)(p15.3q24.1) and 11p15.3-pter non-reciprocal translocation to 21qter, accompanied with 8.9 Mb deletion of 11q24.2q25. A literature review was performed to establish genotype-phenotype correlations of the r (11) and 11q terminal deletion syndrome. Conclusions: To the best of our knowledge, this is the first case of non-reciprocal translocation with a terminal deletion in r (11). These findings provide important information for genetic counseling for this family, and may improve our understanding of the genotype-phenotype correlation of ring chromosome 11 disorders. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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