Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . The cardiac silhouette remains mildly enlarged . The aorta is calcified and tortuous . There are relatively low lung volumes with bibasilar atelectasis . No definite focal consolidation , large pleural effusion , or evidence of pneumothorax is seen . Again , there are lung volumes .
    OUTPUT:
    
Low lung volumes , as before . Mild bibasilar atelectasis . Otherwise , no significant interval change .