Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . There is elevation of the right hemidiaphragm , persistent since the prior study , with overlying atelectasis . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . No pulmonary edema is seen . Cardiac silhouette is top - normal to mildly enlarged . Mediastinal contours are unremarkable .
    OUTPUT:
    
Low lung volumes with persistent elevation of the right hemidiaphragm and overlying atelectasis . Given differences in lung volume , no definite change from the prior study .