A cystic hygroma is a rare form of cyst which can develop in infants, typically in the neck or head, if their lymphatic system becomes clogged while they are growing. Doctors frequently discover cystic hygromas prior to the birth of a baby.
A chromosomal abnormality affects nearly half of all fetuses with cystic hygroma. Chromosomes are the cells that contain our DNA, and when significant portions of them are seriously lacking or damaged, severe medical problems can arise. If the cystic hygroma disappears by week 20, your baby is less likely to have a genetic defect.
These cysts are frequently able to disappear on their own. If not, it should be removed surgically. As a result, it will not damage nearby organs, become infected, or cause discomfort to your baby as they grow.