Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A small right pleural effusion is unchanged . There is persistent collapse involving the right lower lobe . This finding partially counts for the apparent elevation of the right hemidiaphragm . The left lung is clear . There is no pneumothorax . The mediastinal and hilar contours are unremarkable . Fiducial markers are seen in the liver .
    OUTPUT:
    
Small right pleural effusion with continued right lower lobe collapse , unchanged from 5 days prior .