Abstract:Chromosomal microarray (CMA) is currently considered as a first-tier test in the genetic assessment of patients presenting with intellectual disability and/or multiple congenital abnormalities. The distinction between pathogenic CNVs, polymorphisms, and variants of unknown significance can be a diagnostic dilemma for cytogeneticists. The size of the CNV has been proposed as a useful criterion. We herein report the characterization of a 13.6-Mb interstitial duplication 20p11.1p12.1, found in a child presenting … Show more
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