Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the nasogastric tube , endotracheal tube , and left chest tube . No pneumothorax . Postoperative mediastinum and substantial cardiomegaly are stable . Left basilar atelectasis is improved . No large pleural effusion . Swan - Ganz catheter is unchanged terminating in the left main pulmonary artery .
    OUTPUT:
    
Expected postoperative appearance . No pneumothorax .