Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged . Mediastinal contour appears unchanged . Hilar contours are unremarkable , and no pulmonary edema is present . Increased interstitial opacities are seen within the right lung diffusely , as well as in the left lung base , findings which appear worse in the right lung compared to the previous chest radiograph . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is present .
    OUTPUT:
    
Worsening interstitial opacities within the right lung , which may reflect a superimposed infectious process on a background of chronic interstitial abnormality previously characterized on CT as NSIP .