An optimal PA cranium projection demonstrates all of the following except
A) equal distance from the lateral orbital margins to the lateral cranial cortices on both sides.
B) anterior clinoids and dorsum sellae seen inferior to the ethmoid sinuses.
C) petrous ridges superimposing the supraorbital margins.
D) internal acoustic meatus visualized through the center of the orbits.

Question

Quizplus · Accepted Answer

In an optimal PA cranium projection, the anterior clinoids and dorsum sellae should be seen superior to the ethmoid sinuses, not inferior.

An Optimal PA Cranium Projection Demonstrates All of the Following