Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are severely decreased , leading to crowding of the bronchovascular structures . Again , bibasilar atelectasis is noted . There is no lobar consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette appears unchanged in the prior examination . Calcifications are again seen at the aortic arch .
    OUTPUT:
    
Low lung volumes and bibasilar atelectasis .