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.
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TAIWANESE JOURNAL OF OBSTETRICS & GYNECOLOGY;48(3):218-24.
