Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the ___ study the cardiomediastinal silhouette is stable with moderate cardiomegaly . A moderate left pleural effusion persists with left lower lobe volume loss . Moderate to severe pulmonary edema is again seen .
    OUTPUT:
    
1 . Persistent severe pulmonary edema . 2 . Stable moderate left pleural effusion and left lower lobe volume loss .