Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is atelectasis in the right midlung , with overall volume loss in the right lung . No tracheal stent is visualized . There is no pneumothorax or pneumomediastinum . No focal consolidation or pleural effusion . Heart size is normal .
    OUTPUT:
    
No tracheal stent is visualized . Atelectasis in the right mid lung .