Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right middle lobe opacity is identified and better characterized on CTA dated ___ . When compared to radiograph dated ___ , there has been no significant interval changes . No focal consolidation suggestive of interval development of pneumonia is identified . Cardiomediastinal and hilar contours are stable in appearance . There is no overt pulmonary edema . There is no pleural effusion or pneumothorax . Visualized osseous structures are unremarkable .
    OUTPUT:
    
Stable appearance of right middle lobe opacification better delineated on CTA chest dated ___ .