Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well - expanded lungs . Again seen is a reticulonodular interstitial pattern , similar in appearance to the prior study dated ___ . There is a subtle opacification at the right lower lung which likely represents pneumonia . The cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Stable appearance of reticulonodular interstitial pattern with focal area of opacification in the right lower lung , concerning for pneumonia .