Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are better expanded . Despite this there is improvement in the moderate pulmonary edema . There may be a small right pleural effusion , which is unchanged . There is no pneumothorax focal airspace consolidation . The cardiac silhouette remains mildly enlarged . Prominence of the upper mediastinum reflects known mediastinal lymphadenopathy .
    OUTPUT:
    
Improved moderate pulmonary edema with a persistent small right pleural effusion .