Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . Aortic valve replacement and mitral annular calcifications are noted . The patient is status post CABG . The mediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . The lungs are hyperexpanded . Increased interstitial markings may reflect mild pulmonary edema . There is no focal consolidation concerning for pneumonia .
    OUTPUT:
    
Mild to moderate pulmonary edema . No pneumonia .