Anencephally (4D ultrasound)
Observed fetal head abnormalities on ultrasound scan referred for a second opinion and 4D ultrasound
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Absence of the cranial vault, brain tissue can be seen, cerebral hemispheres are above orbital level, and irregular head shape. The face has eyes with “frog-like appearance”. Features are consistent with anencephaly.
A case of anencephaly, the most common neural tube defect diagnosed antenatally.
Differential diagnosis includes: