Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy and presumably coronary artery bypass graft surgery , noting anterior mediastinal clips . The cardiac , mediastinal and hilar contours appear stable , including mild to moderate cardiomegaly with a left ventricular configuration . There is no pleural effusion or pneumothorax . In addition to streaky opacities that are stable and suggest background scarring in the right upper lobe , there is mild to moderate pulmonary edema of interstitial type .
    OUTPUT:
    
Findings suggest mild to moderate pulmonary edema .