Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . Surgical clips overlying the left mediastinum are again noted . There is no pleural effusion or pneumothorax . The lungs are well expanded without focal consolidation . Mild pulmonary edema is noted with mild enlargement of the azygos vein is compared to prior . The upper abdomen is unremarkable .
    OUTPUT:
    
Mild interstitial edema without cardiomegaly or pleural effusions . No pneumonia .