Cystic Hygroma Home>Conditions_and_Diseases>Cardiovascular_Disorders>Congenital_Anomalies>Cystic Hygroma     Web Pages Association of Birth Defect Children, Inc. Charitable organization started by parents in 1982. Cystic Hygroma An article explaining this disorder and a support group for sharing. Cystic Hygroma and Fetal Hydrops From bereaved parents. Site has an explanation of cystic hygroma and more resources. Children's Craniofacial Association A national, nonprofit organization, headquartered in Dallas, Texas, dedicated to improving the quality of life for people with facial differences and their families.