Objectives The aim of this study was to describe a novel three-dimensional (3D) ultrasound rendering technique to examine the normal fetal posterior palate and to assess its correspondence with the real fetal anatomy. Methods

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Even if such mutations are a rare event, PLT phenotyping is still of interest to avoid rare false PLT typing assignation, the unknown polymorphism being only discovered by such a combination of techniques.

Cephalometric analysis by prenatal sonography can be performed to study the antero-posterior jaw relationship. We think that this procedure could be useful to improve prenatal diagnosis of retrognathism in high-risk pregnancies. Further studies should address the reproducibility and accuracy of such analysis.