Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes . Mild bibasilar atelectasis is seen . There is no focal consolidation , pleural effusion , or evidence of pneumothorax . The aorta is calcified and slightly tortuous . The cardiac silhouette is top - normal to mildly enlarged . Degenerative changes are seen along the spine including mild anterior wedging of a thoracolumbar vertebral body .
    OUTPUT:
    
Low lung volumes and mild bibasilar atelectasis . No focal consolidation seen .