Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The mediastinal and hilar contours are normal . The lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No displaced rib fractures are noted , but if there is continued clinical concern for rib fracture , then a dedicated rib series can be obtained .