Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable from ___ . There is a persistent opacity involving the right lower lobe , improved from the prior examination which may represent a area of infection . The right hilus is prominent suggestive of adenopathy , but not changed from the prior . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Right lower lobe opacity persists , but is markedly improved from the prior exam . This could represent a persistent focal area of infection in the appropriate clinical setting . Right hilar prominence is again demonstrated but unchanged from the prior examination .