Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear . There is no effusion or pneumothorax . Cardiac silhouette is slightly enlarged . Atherosclerotic calcifications noted at the aortic arch . Severe degenerative changes seen at the left shoulder . There is no visualized displaced rib fracture .
    OUTPUT:
    
No acute cardiopulmonary process . If high clinical concern and more detailed evaluation desired , dedicated rib series can be obtained .