Concordance between earlier 13–17-week and routine second-trimester ultrasound findings in prenatally detected craniofacial malformations
To retrospectively assess concordance in prenatal detection of craniofacial malformations (CFMs) between earlier fetal ultrasound (US) examinations performed at 13–17 weeks and routine second-trimester anomaly scans performed at 18–22 weeks, using a paired cohort with postnatal or fetopsy/autopsy confirmation....