Evaluation of Fetal Central Nervous System Anomalies Diagnosed Prenatally: Prenatal and Postnatal Outcomes

vermian agenesis, mega cisterna magna), vascular malformations, corpus callosum (CC) agenesis constitutes CNS anomalies (5).Ultrasonography (US) is the primary and most frequently used diagnostic tool for detecting CNS anomalies (6).Major processes such as neuronal proliferation, migration or organization in the CNS developmental process occur in the second half of pregnancy.However, most of the CNS anomalies can be detected with a detailed US evaluation performed during the 18-20 weeks of pregnancy.(7).