Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is large right loculated pleural effusion , increased in size compared to ___ . There is persistent left mediastinal shift . There is collapse of right middle and lower lobes . Previously seen right lower lobe mass on CT from ___ is obscured by the pleural effusion .
    OUTPUT:
    
Large right loculated pleural effusion is increased in size compared to ___ . There is persistent left mediastinal shift .