Trisomy 18 Syndrome is a genetic disorder with onset before birth. Paternal and Maternal age are usually above average.
Babies appear thin and frail.
They fail to thrive and have difficulty feeding. The newborn infant is small for its gestational age. The baby's cry is weak, and response to sound is decreased. There is often a history of feebel fetal activity, excess of fluid in the fetal sac, a small placenta and a single umbilcal artery. Listed are some of the anomalies that may occur.