Additionally, increased detection of trisomic, triploid, and multiple aneuploid cases in Period B resulted in a significant increase in the percentage of cases with abnormal karyotypes (42.8% in ...

One hundred four fetuses (3.8%) had an abnormal karyotype. Compared with a normal ultrasonographic examination result a single minor ultrasonographic marker increased the risk of karyotypic ...

Expert Rev Mol Diagn. 2013;13(6):601-611. In other situations, normal microarray analysis in the presence of an abnormal karyotype, such as marker chromosomes, is reassuring, as it indicates that ...

When the variant genotype is not associated with abnormal phenotypes (traits), chromosomal abnormalities are referred to as karyotype variation or structural genome variation.