What sort of disorder is edwards syndrome?

Fatal disorder: Edwards or trisomy 18 is a birth defect with a third copy of chromosome 18. Most pregnancies with an extra chromosome miscarry. Of those that are born live 50% die in two weeks only 8% live to one year. Infants with this problem tend to have many problems including heart disease, kidney disease, rounded bottoms to their feet! webbing between toes and undescended testicles.

Genetic disorder.: I would add that babies with trisomy 18 can also have severe developmental and growth delay, small head and eyes, malformed ears, small mounth and jaw, distinctively clenched fingers, & other congenital malformations.Early in pregnancy, the incidence of trisomy 18 is 1 in 400, but due to a high miscarriage rate, it's only about 1 in 6, 000-8, 000 live births.