Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate enlargement of the heart , is unchanged . The hilar and mediastinal contours are stable . Multiple mediastinal clips and sternotomy wires indicate prior CABG . There is mild pulmonary edema . No consolidation , pleural effusion , or pneumothorax is seen .
    OUTPUT:
    
Moderate cardiomegaly and mild edema . No pneumonia .