Prenatal ultrasound is a powerful tool for detecting structural abnormalities in fetuses in trisomy 13 pregnancies. This article provides a comprehensive review of the prenatal sonographic features of trisomy 13 in the second and third trimesters, including holoprosencephaly, brachycephaly, microcephaly, Dandy-Walker complex and posterior fossa abnormalities, ventriculomegaly, neural tube defects, facial cleft, and micrognathia. [Taiwan J Obstet Gynecol 2009;48(3):218-224]
Relation:
TAIWANESE JOURNAL OF OBSTETRICS & GYNECOLOGY 48 (3): 218-224