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Sánchez J, García-Díaz L, Chinchón D, et al. Prenatal diagnosis of a fetus with congenital heart defect and ring chromosome 14. Case Rep Genet. 2012;2012:794075doi: 10.1155/2012/794075.
Sánchez, J., García-Díaz, L., Chinchón, D., & Antiñolo, G. (2012). Prenatal diagnosis of a fetus with congenital heart defect and ring chromosome 14. Case reports in genetics, 2012794075. https://doi.org/10.1155/2012/794075
Sánchez, Javier, et al. "Prenatal diagnosis of a fetus with congenital heart defect and ring chromosome 14." Case reports in genetics vol. 2012 (2012): 794075. doi: https://doi.org/10.1155/2012/794075
Sánchez J, García-Díaz L, Chinchón D, Antiñolo G. Prenatal diagnosis of a fetus with congenital heart defect and ring chromosome 14. Case Rep Genet. 2012;2012:794075. doi: 10.1155/2012/794075. Epub 2012 Nov 05. PMID: 23198189; PMCID: PMC3501810.
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Case Rep Genet. 2012;2012:794075. doi: 10.1155/2012/794075. Epub 2012 Nov 05.

Prenatal diagnosis of a fetus with congenital heart defect and ring chromosome 14.

Case reports in genetics

Javier Sánchez, Lutgardo García-Díaz, David Chinchón, Guillermo Antiñolo

Affiliations

  1. Unidad de Gestión Clínica de Genética, Reproducción y Medicina Fetal, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío (CSIC), Universidad de Sevilla, 41013 Seville, Spain.

PMID: 23198189 PMCID: PMC3501810 DOI: 10.1155/2012/794075

Abstract

Monosomy of chromosome 14 has been reported in only a few prenatal cases. Generally, this monosomy is associated with a mosaicism of ring chromosome 14. Ring chromosome 14 is a rare cytogenetic entity with clinical characteristics that include growth retardation, facial dysmorphia, hypotonia, seizures, and retinitis pigmentosa. Given that the majority of symptoms appear postnatally, few cases have been reported of prenatal diagnosis of mosaicism monosomy/ring chromosome 14. We describe the prenatal diagnosis of a case of chromosomal mosaicism, a cell line with ring chromosome 14, r(14), and a second cell line with monosomy 14, in a fetus with aortic coarctation and chamber asymmetry. This is the first case of a prenatal diagnosis associating mosaicism with ring chromosome 14, monosomy 14, and fetal cardiopathy. We identified the exact breakpoint in ring chromosome 14 in IGH locus, which may provide further insight into the mode of ring formation as well as prenatal findings.

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