Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new right upper lobe opacity with a linear border consistent with intervening radiation treatment to this area . Again seen is an infrahilar opacity which is largely unchanged and may represent focal fibrosis . There is slight right hilar elevation , consistent with post-radiation changes . There is an opacity projecting over the right lower lung field , which is best explained by change in patient position and technical differences . The left lung is unremarkable . There is stable cardiomegaly and tortuosity of the aorta . There is no pleural effusion or pneumothorax . The pleural surfaces are unremarkable .
    OUTPUT:
    
New post-radiation changes seen in the right lung . No evidence of infection or malignancy .