Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is mildly enlarged but unchanged . The mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Remote bilateral rib fractures are noted .
    OUTPUT:
    
No acute cardiopulmonary process .