Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are severe , worsening , diffuse interstitial abnormalities , particularly in the right upper lobe and the left perihilar region compared to the most recent prior studies from ___ ; these changes may be due to worsening NSIP , superimposed infection or lower lung volumes ( or a combination therein ) . Cardiac silhouette is unchanged in size . The aortic knob is calcified . No pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Progression of the patient 's diffuse interstitial abnormalities compatible with worsening NSIP and / or superimposed infection both of which are potentially accentuated by lower lung volumes .