Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right pigtail catheter is in stable position , and no pneumothorax is noted . There is a small right pleural effusion . Increased opacity at the right lung base likely reflects atelectasis given decreased lung volume compared to prior radiograph . A right central venous line terminates within the mid atrium . A nasogastric tube terminates below the diaphragm outside of the view of this radiograph . No new focal consolidation .
    OUTPUT:
    
Right pigtail catheter in stable position . No pneumothorax .