Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to most recent prior study , there has been no major interval change . Right perihilar and right upper lung opacity persists . There is persistent elevation of the right hemidiaphragm . No new consolidation , pleural effusion , or pneumothorax is detected . Heart and mediastinal contours are stable ; cardiac silhouette is incompletely evaluated due to low lung volumes .
    OUTPUT:
    
No radiographic evidence for acute change .