Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes and persistent elevation of the right hemidiaphragm . Bibasilar opacities may be due to atelectasis but underlying consolidation from infection or aspiration is not excluded . Slight blunting of the right costophrenic angle is again seen , possibly due to atelectasis or trace pleural effusion . No large pleural effusion is seen . There is no evidence of pneumothorax . The cardiac silhouette is top - normal . Mediastinal contours are unremarkable .
    OUTPUT:
    
Low lung volumes , which accentuate the bronchovascular markings . Persistent elevation of the right hemidiaphragm . Bibasilar opacities most likely due to atelectasis but consolidation from infection or aspiration not excluded .