Article
Prenatal Diagnosis of a Female Fetus with Ring Chromosome 9, 46,XX,r(9)(p24q34), and a de novo Interstitial 9p Deletion
1 Jan 2014
Abstract excerpt
Ring chromosomes are circular structures formed as a result of breaks in the chromosome arms and the fusion of the proximal broken ends with a loss of distal material, or by fusion of dysfunctional telomeres without any loss. The mechanism underlying this process has not yet been sufficiently explained. Commonly, rings occur as acquired genetic abnormalities; however, sometimes they are found as constitutional...
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