From the 10 cases of fetuses with anomaly
that had normal ultrasound finding, five cases (0.8%)
were detected in the neonatal period. Each of these
cases had anopthalmia, hydrocephalus, skeletal dysplasia,
tibial aplasia or multicystic kidney. The remaining
five cases were detected as a result of invasive
prenatal diagnosis in the second trimester by amniocentesis
and cordocentesis, indicated by maternal age
and thalassemia risk status. Three of these cases had
Hb Bart’s disease, one case of trisomy 21 and one case
of trisomy18.