Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral streaky infiltrates worse in the upper lung fields are unchanged . Lung volumes are low . Left base streaky opacity , atelectasis vs pneumonia . No evidence of pleural effusion . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Right great than left , upper lobe streaky opacities may be chronic , but infection can not be excluded . Left base streaky opacity , atelectasis vs pneumonia .