Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . Mediastinal and hilar contours are normal . Lungs are clear . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is visualized . No acute osseous abnormality is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No acute fracture identified . If there is continued concern for a rib fracture , a dedicated rib series can be obtained