Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chain sutures project over the apex of the left lung as before . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
No evidence of focal consolidation or pleural effusion . Stable postoperative changes in the left upper lung .