Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is moderate cardiomegaly , with prominence of the cardiomediastinal silhouette . The dual lead pacemaker is again noted , with lead tips over the right atrium and right ventricle . Mild interstitial edema is again seen , slightly more pronounced . There is new hazy opacity at the right lung base , which could represent a combination of pleural fluid and / or underlying collapse and / or consolidation . The left costophrenic sulcus is clear .
    OUTPUT:
    
1 . Cardiomegaly . 2 . Interstitial edema , possibly slightly more pronounced than on ___ . 3 . New hazy opacity at right lung base . This is not fully characterized , but could represent a combination of pleural fluid and underlying collapse and / or consolidation .