Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is biapical scarring . The lungs are otherwise clear without consolidation or effusion . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . No acute osseous abnormalities , old healed posterior right rib fractures noted .
    OUTPUT:
    
No acute cardiopulmonary process .