Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Given low lung volumes , the lungs are grossly clear . There is no effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . Old healed posterior right fifth , sixth and seventh rib fractures are identified . Severe degenerative changes noted at the right shoulder as on prior .
    OUTPUT:
    
No acute cardiopulmonary process .