Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top - normal . Mild calcifications of the aortic knob . Fluid filled neoesophagus is unchanged . The cardiomediastinal silhouette and hilar contours are unremarkable . Right subclavian approach Port - A - Cath tip terminates in the distal SVC . Lungs are clear . No pleural effusion or pneumothorax . No pneumomediastinum or subdiaphragmatic free air .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No pneumomediastinum or pneumoperitoneum .