Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is moderately enlarged , unchanged from ___ . There is mild interstitial pulmonary edema . No pleural effusion or pneumothorax . No focal airspace consolidation or pneumothorax .
    OUTPUT:
    
1 . Mild interstitial pulmonary edema . 2 . Moderate cardiomegaly , unchanged from at least ___