Cystic Hygroma - Prognosis

Prognosis

Cystic hygroma can be found in healthy babies or in babies born with chromosome abnormalities. The outcome is generally better for a baby that does not have a chromosome abnormality. About 60% of cystic hygromas result from chromosome abnormalities. The baby may have a set of abnormalities known as "genetic syndrome".

Genetic syndromes with cystic hygroma as a clinical feature: • The majority of prenatally diagnosed cystic hygromas are associated with Turner syndrome, a chromosome abnormality in which a female has only one X chromosome instead of two. • Chromosome abnormalities such as trisomies 13, 18, and 21 • Noonan syndrome