Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart is mild to moderately enlarged , unchanged . Mediastinal and hilar contours are unchanged . Mild pulmonary vascular engorgement is present , not significantly changed compared to the prior radiograph . No pleural effusion or pneumothorax is seen . Bibasilar airspace opacities are likely reflective of atelectasis .
    OUTPUT:
    
Mild pulmonary vascular engorgement .