Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The aorta is mildly tortuous , but unchanged . The mediastinal and hilar contours otherwise are unremarkable . The lungs are clear and the pulmonary vascularity is normal . Again seen is a healed left posterior 3rd rib fracture . Cervical fusion hardware is partially imaged . Clips in the right upper quadrant the abdomen indicate prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary abnormality .