Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy and CABG . The lung volumes are low , resulting and mild bibasilar atelectasis . The hilar and mediastinal structures are normal . No focal consolidations concerning for pneumonia are identified . There is pulmonary vascular congestion with no overt pulmonary edema . There is no pleural effusion , pneumothorax . No free air is seen below the right hemidiaphragm .
    OUTPUT:
    
Top normal heart size with central pulmonary vascular congestion .