Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Reappearance of moderate right pleural effusion obscures the right heart border . There is elevation of the right hemidiaphragm . The cardiac silhouette continues to be mildly enlarged with no signs of vascular congestion . No focal consolidation is seen . Left internal jugular catheter ends in a known left persistent vena cava .
    OUTPUT:
    
Reappearance of moderate right pleural effusion .