An AP oblique shoulder projection (Grashey method) obtained with the patient rotated less than required to obtain accurate positioning demonstrates
1. more than 0.25 inch (0. 6 cm) of the coracoid superimposed over the humeral head.
2. a closed glenohumeral joint.
3. increased longitudinal clavicular foreshortening.
4. an increase in the amount of thorax and scapular body superimposition.
a. 2 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 1, 2, 3, and 4
A
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