Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There low lung volumes . . The aorta is tortuous and heart size is normal . Bronchovascular crowding is likely secondary to low lung volumes . Streaky bibasilar opacities may reflect atelectasis . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes with crowding of the bronchovascular structures and bibasilar streaky opacities , possibly atelectasis , but aspiration is not excluded .