Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single frontal radiograph of the chest was acquired . On a background of a widespread bilateral chronic interstitial abnormality , there are new reticular and patchy opacities in the right lower lung , concerning for an infectious process . There may also be mild interstitial pulmonary edema . The heart is top normal in size , as before . The mediastinal contours are normal . There are no definite pleural effusions . No pneumothorax is seen .
    OUTPUT:
    
1 . Findings concerning for right lower lung infection versus aspiration pneumonitis . 2 . Possible mild interstitial pulmonary edema . 3 . Widespread bilateral pulmonary interstitial abnormality , chronic in appearance .