Cystic Hygroma

Has any of you heard about Cystic Hygroma? Have not really been diagnosed with it but my ultrasound results showed "possible cystic hygroma". I was referred to a high risk OB and will see her this Tuesday. I was scared while waiting for my first prenatal visit but this nervousness goes above the scale while I wait for the OB to see me. They are thinking possible chromosomal abnormalities because they noticed a thickening of the nuchal fold during the ultrasound (but they didnt measure it). We prayed for this baby and will.love the baby regardless but has anyone experienced this scare and gave birth to a normal healthy baby? I would appreciate to hear your stories. Thank you so much.