Abnormal Findings in Ultrasound Examination

One of the purposes of fetal ultrasound examinations during pregnancy is detection of fetal malformation. Antenatal ultrasound screening for morphological abnormalities has now become an accepted routine in obstetric clinical setting. Obtained antenatal information of the fetal abnormalities allows obstetricians to improve the management of pregnancy and gives parents earlier reassurance about the fetus. With improvement in the resolution of ultrasound, major congenital abnormalities have come to be identified in the first trimester, instead of the second trimester. However, examiners should be aware of potential pitfalls in the first trimester ultrasound diagnosis of the fetal anomaly. The use of a combination of first and second trimester ultrasound scan for detecting fetal anomalies was effective. In this section, important fetal congenital abnormalities are explained. In particular, anomalies associated with chromosomal abnormalities and genetic disease are selected.