ultrasound diagnosis of fatal anomalies

ANENCEPHALY
Fig. 2.2 Exencephaly. Vaginal sonography, demonstrating
the fetal head at 19+6weeks.Aplasia of the
cranial vault; brain tissue covered with meninges is
floating in the amniotic fluid. Unusually late form of
exencephaly without progression to anencephaly.
Fig. 2.3 Anencephaly. Ultrasound showing the
frontal view. The lenses of the eye are well recognized
above the orbits, where the bony skull ends
(“frog head”).
Fig. 2.4 Anencephaly. Frontal view, showing the
fetus after termination of pregnancy.
2
25