Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette and pulmonary vasculature are unchanged since the prior examination and unremarkable . Bilateral , nodular opacities are again demonstrated , and are better characterized on prior CT . There is slightly more prominent opacity seen in the right infrahilar region . No definite new focal consolidation is seen elsewhere . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . Increase in prominence of opacity in the right infrahilar region , right middle lobe , which may represent developing pneumonia .