Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post partial resection of the right lobe of the liver . Moderate right pleural effusion associated atelectasis of right lower lobe is unchanged since prior radiograph from ___ ( Better assessed on chest CT from ___ ) . Right hemidiaphragm margin is obscured by the pleural effusion . Air lucencies in the right hypochrondriac region is due to bowel loops occupying liver resection site . Two drain tubes are present in the right hypochondium . Left lung is clear . There is no pleural effusion or pneumothorax . Heart size , mediastinal and hilar contours are unchanged .
    OUTPUT:
    
Known moderate right pleural effusion associated with atelectasis of right lower lung , unchanged since ___