Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval enlargement of the right hilum , with apparent surrounding architectural distortion . Moderate cardiomegaly persists , with a tortuous and calcified aorta . Continued blunting of the left costophrenic angle suggests small pleural effusion or scarring .
    OUTPUT:
    
1 . New right hilar enlargement could represent underlying lymphadenopathy , mass , or enlarged pulmonary artery . Recommend chest CT when clinically appropriate . 2 . Moderate cardiomegaly . 3 . Chronic left pleural effusion versus scarring .