Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged . There is persistent retrocardiac opacity and left lower lobe opacification , which could reflect a combination of pleural fluid and atelectasis . There is also mild pulmonary edema which is worsened since prior exam . There is a vague nodularity lateral to the left hila for which repeat examination is recommended once edema clears . No pneumothorax or focal consolidation identified .
    OUTPUT:
    
1 . Mild pulmonary edema . Persistent retrocardiac and recurrent left lower lobe opacity , which could reflect a combination of fluid and atelectasis . 2 . Vague nodularity lateral to the left hila for which repeat examination is recommended once edema clears .