A optimally positioned AP axial cranium projection (Towne method) demonstrates all of the following except
A) the inferior occipital bone at the center of the exposure field.
B) symmetrical petrous ridges.
C) the dorsum sellae within the foramen magnum.
D) the posterior clinoids superior to the foramen magnum.

Question

Quizplus · Accepted Answer

A optimally positioned AP axial cranium projection (Towne method) should demonstrate the inferior occipital bone at the center of the exposure field, symmetrical petrous ridges, and the dorsum sellae within the foramen magnum. The posterior clinoids are not typically visible on this projection.

A Optimally Positioned AP Axial Cranium Projection (Towne Method) Demonstrates