Prenatal diagnosis of the Pallister‐Killian mosaic aneuploidy syndrome by CVS

Abstract excerpt

Prenatal cytogenetic analysis at 11 weeks of gestation revealed an abnormal karyotype 47,XX,+mar in all metaphases obtained from a chorionic villi sample after 24 h culture. Karyotyping of amniotic fluid cells in the second trimester showed mosaicism 47,XX,+i(12p)/46,XX with 10% aneuploid cells. The pregnancy was terminated at 20 weeks of gestation on the patient's request. The aborted fetus showed typical...

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