[Genetic counseling for children with abnormal embryonic development of genetic origin].

Until recently, clinical dysmorphology was poorly considered in medicine and human genetics. However, the studies of children affected with multiple congenital anomalies syndromes lead to syndrome identification, prognosis and care for the affected children, and genetic counselling for the families. The identification of developmental genes involved in normal and abnormal morphogenesis leads to a better understanding of genetic causes and embryological development.