Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is improved aeration of the right upper lung compared to prior chest radiograph from ___ , but decreased aeration compared to more recent chest CT from ___ . Persistent large right pleural effusion with associated right middle and lower lobe collapse , better assessed on prior chest CT from ___ . The left lung is grossly clear . No large effusion or pneumothorax on the left . Cardiac and mediastinal silhouettes are unchanged .
    OUTPUT:
    
Persistent large right pleural effusion associated right middle and lower lobe collapse , better assessed on prior chest CT . Improved aeration of the right upper lung compared to prior chest radiograph from ___ , but decreased aeration compared to more recent chest CT from ___ . No definite new consolidation identified .