Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear without focal consolidation , effusion , or pneumothorax based on this supine film . Biapical pleural based scarring is seen . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . Right shoulder arthroplasty changes are seen . No displaced fractures seen .
    OUTPUT:
    
No acute cardiopulmonary process .