Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest tube is present . No discrete pneumothorax is identified . Pneumomediastinum still however persists . Small left pleural effusion with adjacent atelectasis . No focal consolidation , pleural effusion or pneumothorax identified in the right lung . The size of the cardiomediastinal silhouette is within normal limits . Extensive subcutaneous emphysema is noted in the neck and the left chest .
    OUTPUT:
    
No discrete pneumothorax is identified however there is persisting pneumomediastinum . A left chest tube is present .