Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , which accentuate bronchovascular markings . Mild bibasilar opacities may be due to combination of low lung volumes and atelectasis , but aspiration or pneumonia is not excluded in the appropriate clinical setting . Again seen linear scarring in the right right mid and lower lung . No large pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Low lung volumes . Mild bibasilar opacities could be due to low lung volumes and atelectasis , but pneumonia or aspiration is not excluded in the appropriate clinical setting .