The double trisomies involved all chromosomes except 1, 3, 11, 17, and 19 ... different (Table 6), with the complexity of the karyotype abnormalities correlating with increasing maternal age.

this can be sufficient to diagnose certain categories of abnormalities. For example, aneuploidy, which is often caused by the absence or addition of a chromosome, is simple to detect by karyotype ...

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 the marker is lacking ...

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 ...