Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Nipple shadows project over the lungs bilaterally . There is no effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . Hiatal hernia is again noted . No acute osseous abnormalities , multiple old anterior right rib fractures are noted .
    OUTPUT:
    
No acute cardiopulmonary process .