Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided port terminates at the cavoatrial junction . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . No free intraperitoneal air seen under the bilateral hemidiaphragms .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No free intraperitoneal air identified on this chest radiograph .