Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . There are patchy opacities in the lung bases , likely bibasilar atelectasis . No pleural effusion or pneumothorax . Crowding of the bronchovascular structures is present . Heart size is mildly enlarged . Tortuous aorta with an exaggerated thoracic kyphosis is present . There is a mild wedge compression of the lower thoracic vertebral body which is not well evaluated .
    OUTPUT:
    
Low lung volumes with probable bibasilar atelectasis .