Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to ___ , there is a new subtle reticulonodular opacification in the right lower lung , likely right middle lobe which may represent a developing pneumonia , possibly viral . No confluent opacification identified . No pleural effusion or pneumothorax present . Cardiomediastinal and hilar contours are normal in appearance .
    OUTPUT:
    
Subtle increased opacification in right lower lung may represent developing right middle pneumonia , possibly viral .