Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Mild enlargement of the cardiac silhouette is unchanged when compared to the prior study . There is continued mild pulmonary vascular congestion . No large pleural effusion or pneumothorax is present . There are degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion .