Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to ___ , on the right pigtail catheter is in similar position . Slight interval improvement in the right lower lobe atelectasis and mass like consolidation in the right lung . The left lung remains clear . No pneumothorax .
    OUTPUT:
    
Slight interval improvement in the right lower lobe atelectasis and mass like consolidation in the right lung . No pneumothorax .