Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Mild enlargement of the cardiac silhouette is re - demonstrated . Mediastinal contour is unchanged . There is mild pulmonary edema , new in the interval . No large pleural effusion or pneumothorax is present . No focal consolidation is seen . Lungs appear hyperinflated with flattened diaphragms suggestive of underlying COPD . Mild degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary edema .