Pseudomosaicism represents two or more cell lines that have arisen in cell culture but are not representative of the Poor pregnancy outcome and perinatal loss have been reported in association with confined placental mosaicism. The utility and method of antepartum There have been reports of an association between CVS and limb reduction and oromandibular defects. Cavernous hemangiomas have also been reported. The risk for these anomalies is unclear. According to the World Health Organization, the global 10-year experience with CVS reveals an incidence of limb reduction defects of 6 per Amniocentesis Amniocentesis for prenatal diagnostic testing is usually offered between 15 and 20 weeks of gestation.
Amniotic fluid is aspirated from the first sac.
The value of amniotic fluid alpha-fetoprotein determination with an ultrasound evaluation has become increasingly controversial as ultrasound resolution has improved.