Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate right pleural effusion appears slightly larger , but positional differences ___ contribute to this apparent change . Small left pleural effusion is similar . Cardiomediastinal contours are stable . Apparently new opacity in the right middle lobe partially obscures the right heart border , and ___ represent localized atelectasis or infectious consolidation . Known left lower lateral lytic metastasis appears unchanged . Small left pleural effusion appears similar . Biliary drainage catheter is present in the right upper quadrant of the abdomen .
    OUTPUT:
    
New right middle lobe opacity , which ___ represent atelectasis or infectious consolidation . Apparent increase in moderate right pleural effusion and persistent small left pleural effusion .