Ultrasound images showing of frontal bossing, flat nose/face, retrognathia

Sagittal ultrasound images of the fetal profile.
(A) Thanatophoric dysplasia at 20.3 weeks gestation demonstrates frontal bossing (arrow) and flattened nasal bridge (arrowhead).
(B) Campomelic dysplasia at 22 weeks demonstrates markedly flat facies and retrognathia (arrow).