Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The lungs are clear of focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . Atherosclerotic calcifications noted at the aortic arch . No displaced acute fractures seen on these non dedicated views . Severe degenerative changes seen at the shoulders bilaterally .
    OUTPUT:
    
No definite acute cardiopulmonary process .