Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Heart size is borderline enlarged . The mediastinal contours are unchanged . Aortic knob calcifications are re- demonstrated . Mild pulmonary vascular congestion is demonstrated . Small bilateral pleural effusions are new in the interval . Patchy bibasilar atelectasis is likely present . The lungs are hyperinflated suggestive of COPD . No focal consolidation or pneumothorax is present . There are multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion with small bilateral pleural effusions . COPD . Bibasilar atelectasis .