A lateral scapular projection with accurate positioning obtained with the humerus abducted to a 90-degree angle with the body demonstrates
1. superimposition of the lateral and vertebral scapular borders.
2. the scapula in a Y formation.
3. the superior scapular angle inferior to the coracoid.
4. the midscapular body in the center of the collimated field.
a. 1 and 4 only
b. 2 and 4 only
c. 1, 2, and 3 only
d. 1, 2, and 4 only
A
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