Intrauterine growth restriction. Some chromosomal, genetic and exogenic causes

Intrauterine growth restriction (IUGR) occurs if the fetus does not reach i ts growth potential. There are numerous possible causes. Chromosomal and no n-chromosomal influences may be present, especially in early IUGR. In such cases the sonographic diagnosis of IUGR and associated anomalies are of par ticular importance since invasive diagnostic procedures are commonly carrie d out. Exogenic causes of IUGR also play a major role. These are significan t because effective measures for prevention and treatment are often availab le.