Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates at the cavoatrial junction . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . Air-fluid levels are present throughout the visualized transverse colon and splenic flexure without dilatation .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . Colonic air - fluid levels .