Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . Inferior approach central line is again seen terminating within the right atrium . Epicardial leads and cholecystectomy clips are unchanged . The lungs are clear . There is no pleural effusion , pneumothorax or focal airspace consolidation . There is chronic elevation of left hemidiaphragm . The cardiac and mediastinal contours are normal . The hilar structures are unremarkable . Scarring is again seen in the left mid lung .
    OUTPUT:
    
No acute cardiopulmonary process .