Keywords : achondrogenesis, amniotic band syndrome, arthrogryposis, asphyxiating thoracic dystrophy, caudal regression syndrome, Chiari II malformation, club foot, congenital hypophosphatasia, craniosynostosis, diastomatomyelia, epiphysis, femur length, fetal clenched fist, fetal femur, fetal fibula, fetal hand, fetal humerus, fetal long bones, fetal radius, fetal scoliosis, fetal spine, fetal tibia, fetal ulna, FL, GA, gestational age, hemivertebrae, heterozygous achondroplasia, Larsen syndrome, lemon shaped cranium, Meckel Gruber syndrome, meningocele, Meningomyelocele, obstetrical ultrasound, OI, oligohydramnios, osteogenesis imperfecta, polyhydramnios, radial ray anomalies, rocker bottom foot, sacral agenesis, sacrococcygeal teratoma, semilobar holoprosencephaly, short rib - polydactyly syndrome, skeletal dysplasia, strawberry-shaped cranium, thanatophoric dysplasia, trigonocephaly, trisomy 13, trisomy 18, trisomy 21, VACTERL syndrome