CPN | Trisomy 18

Trisomy 18

Also known as Edwards Syndrome, Trisomy 18 is caused by an error in cell division known as meiotic disjunction. Instead of the normal pair, an extra chromosome 18 (triple) results and disrupts the normal pattern of development in significant ways. The developmental delays that can be caused by Trisomy 18 are associated with more medical complications that are more potentially life threatening in the early months and years of life. However, the level of severity differs case by case.