Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior radiograph , the right middle lobe asymmetric opacity has improved , but is still persistent . Prominence of the minor fissure has resolved . No new focal consolidation concerning for pneumonia or larger pleural effusions . The cardiomediastinal and hilar silhouettes are stable . No pneumothorax .
    OUTPUT:
    
The right middle lobe asymmetric opacity has improved , but is still persistent . No new focal consolidation .