The structures that are affected in a shoulder impingement are not made of bone so won’t be visible on an x-ray. However it is possible to see the sub-acromial space (the gap between the humeral head and the acromion). If this is reduced then it could be assumed that the biceps tendon, supraspinatus tendon and the bursa may be compressed. It’s also possible to see boney anomalies such as defects in the acromion or the formation of osteophytes that can develop if the condition has been present for a long time.