Nuchal Fold Thickening
This condition is an increased thickness of the skin at the base of a fetus's neck. It is found via ultrasound in 1-2 percent of normal pregnancies between 15 and 20 weeks' gestation.
Causes of nuchal fold thickening
- Most babies with a thickened nuchal fold have no other problems.
- It can increase the risk of chromosome problems such as Down syndrome or, more rarely, a genetic syndrome.
- There may be a higher risk of chromosomal problems if you have had abnormal results on an ultrasound or a maternal serum screening.
- You can have a more detailed ultrasound to look for other abnormalities.
- The maternal serum screening can assess your risk of having a baby with Down syndrome, usually done between 15 and 20 weeks.
- An amniocentesis can diagnose a chromosome abnormality or infection. Amniocentesis involves obtaining a sample of the fluid surrounding the baby, which is then used to study the fetal chromosomes. There is a small risk of miscarriage from amniocentesis.