Chromosomal mosaicism and maternal cell contamination in chorionic villi cultures.
In a series of 110 chromosome analyses, after chorionic villus sampling, mosaics were found in 3 out of 106 long term cultures. In all 3 cases, subsequent amniotic fluid cell cultures showed normal karyotypes. Maternal cell contamination was encountered in one long term culture derived from carefully dissected chorionic villi.
D000649:Amniocentesis; D002478:Cells, Cultured; D002824:Chorionic Villi / Q000648:ultrastructure*; D005260:Female; D005821:Genetic Techniques; D006801:Humans; D007621:Karyotyping; D008297:Male; D009030:Mosaicism; D011247:Pregnancy