Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the cardiomediastinal contours and result in crowding broad the bowel is structures at the lung bases . With this limitation , heart size is normal , and lungs are clear except for minimal linear bibasilar atelectasis . No pleural effusion or pneumothorax . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with minimal bibasilar atelectasis .