A lateral scapular projection obtained with the patient underrotated and the arm placed at a 90-degree angle with the patient demonstrates
1)superimposed lateral and vertebra scapular borders.
2)the lateral scapular border medial to the vertebral border.
3)the superior scapular angle inferior to the coracoid.
4)the vertebral scapular border medial to the lateral border.
A) 1 and 3 only
B) 2 only
C) 2 and 3 only
D) 4 only

Question

Quizplus · Accepted Answer

When the patient is underrotated in a lateral scapular projection, the vertebral scapular border will be closer to the image receptor and thus appear medial to the lateral border. The superior scapular angle should be superior to the coracoid process, and the two borders should be separate without significant superimposition. Option 2 is incorrect because it describes the opposite scenario, with the vertebral border medial to the lateral border. Option 1 is incorrect because significant superimposition would not allow for the borders to be distinguished. Option 3 is incorrect because the superior scapular angle should be superior to the coracoid process, not inferior.

A Lateral Scapular Projection Obtained with the Patient Underrotated and the Arm