Chapter 48 First-Trimester Complications

Question 1

The dominant structures seen within the embryonic cranium within the first trimester is that of the ________ , which fills the lateral ventricles that in turn fills the cranial vault.

Answer 1

choroid plexus

Question 2

_______ of the cranial vault is not complete in the first trimester; the resulting false cranial border definition may give rise to a false-negative diagnosis for cranial anomaly.

Answer 2

ossification

Question 3

An abnormality that may be seen near the end of the first trimester when there is absence of the cranium superior to the orbits with preservation of the base of the skull and facial features with the brain projected from the open cranial vault is _________.

Answer 3

anenecphaly

Question 4

In ________, the choroid plexus is shown to be “dangling” in the dilated dependent lateral ventricle.

Answer 4

ventriculomegaly