Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of chest tubes . No pneumothorax . Left basilar opacity , likely atelectasis . Previously suggested pneumomediastinum is less apparent . Right lung is clear . Epicardial pacer wires . Shallow inspiration . Sternotomy .
    OUTPUT:
    
No pneumothorax . Left basilar opacity , stable , likely atelectasis