Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent elevation of the right hemidiaphragm , unchanged . Otherwise , the lungs are well expanded and clear . No pulmonary edema . Stable appearance of the cardiomediastinal silhouette . No pleural effusion . No pneumothorax .
    OUTPUT:
    
No evidence of pneumonia . Stable elevation of the right hemidiaphragm .