Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is borderline enlarged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is visualized . Remote right ___ posterior rib fracture is re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary process .