Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low 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 is unchanged appearance . Chronic left - sided rib deformities are noted .
    OUTPUT:
    
Low lung volumes and bibasilar atelectasis .