Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , which accentuate the bronchovascular markings . Given this , there bibasilar atelectasis . Hilar and perihilar opacities may be due to a mild pulmonary edema , again exaggerated by the low lung volumes . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
There are low lung volumes , which accentuate the bronchovascular markings . Given this , there bibasilar atelectasis . Hilar and perihilar opacities may be due to a mild pulmonary edema , again exaggerated by the low lung volumes . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are stable .