Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated . The tracheostomy tube appears midline , accounting for patient rotation . Lung volumes remain low with severe persistent right lower lung atelectasis , overall unchanged . The small right pleural effusion probably is also overall unchanged . The heart size is normal . No pneumothorax . No left pleural effusion . The left lung is clear . Old left rib fractures are unchanged .
    OUTPUT:
    
No change in right atelectasis and pleural effusion over several days .