Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . There is mild to moderate interstitial pulmonary edema , improved from ___ . Small bilateral pleural effusions are best appreciated on the lateral view . The heart is mildly enlarged but unchanged . There is no pneumothorax or focal airspace consolidation worrisome for pneumonia . Sternotomy wires and CABG clips are noted .
    OUTPUT:
    
Mild to moderate pulmonary edema , improved from ___ .