Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent elevation of the right hemidiaphragm . Cardiac silhouette size remains mild to moderately enlarged . Aorta is tortuous and demonstrates atherosclerotic calcifications of the arch . Mediastinal and hilar contours are unchanged . Bibasilar atelectasis is noted without focal consolidation . Crowding of the bronchovascular structures is noted without overt pulmonary edema . No pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Bibasilar atelectasis and chronic elevation of the right hemidiaphragm .