I went for a 9 week viability scan and the sonographer saw a cystic hygroma 5mm on one side of neck n 7mm on the other side. I have had a test for turners syndrome and, trisomies 13, 18, 21. We still await the results but the sonographer said that cystic hygromas indicate a poor prognosis for the pregnancy. Does anybody have any experience of a cystic hygroma affecting their baby early in pregnancy?