Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly stable . Dual - chamber pacemaker leads are unchanged . Since the prior radiograph ___ ___ there has been increase in interstitial markings bilaterally , indicative of pulmonary edema . There is no pleural effusion or pneumothorax . No focal consolidation to suggest pneumonia .
    OUTPUT:
    
Mild interstitial pulmonary edema , with no pleural effusions or focal consolidation . Stable moderate cardiomegaly .