Prenatal ultrasound findings of holoprosencephaly spectrum: Unusual associations.

Objective: The objective of this study is to evaluate the prenatal diagnosis, postnatal characteristics, and the spectrum of associated findings in fetuses with holoprosencephaly (HPE).

Methods: Fetal neurosonograms, postnatal assessment, and chromosomal analysis were performed in a cohort of 25 fetuses with HPE.

Results: The prevalence of HPE in high-risk pregnancies was 4.