Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , I doubt significant interval change . No focal infiltrate to suggest pneumonia is identified . Again seen is COPD , mild cardiomegaly , prominent pulmonary arteries , vascular plethora , bibasilar atelectasis and / or scarring , and an eventrated right hemidiaphragm . The previously seen posterior left effusion is smaller , and there is residual blunting of both costophrenic angles . Osteopenia , compression fractures , hand sites of vertebroplasty are again noted .
    OUTPUT:
    
No focal infiltrate identified to suggest pneumonia . Extensive chronic changes appear stable .