Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate right pleural effusion appears unchanged since ___ . The right chest tube is unchanged in configuration . The left lung remains clear . The heart size remains normal . The lungs are hyperinflated , as seen previously , reflecting chronic obstructive disease . There is no pneumothorax or new consolidation .
    OUTPUT:
    
1 . Unchanged moderate right pleural effusion . No pneumothorax . 2 . Hyperinflated lungs suggesting chronic obstructive disease .