Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The heart is normal in size . Again seen are calcified hilar and mediastinal lymph nodes , unchanged from the prior examination . There is elevation of the left hemidiaphragm , which is similar to prior . The pleural surfaces are normal without effusion or pneumothorax .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .