Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Marked cardiomegaly is unchanged . The cardiac to place generator is present in the left chest with single intact lead terminating in the right ventricle . There is no evidence of retained radiopaque foreign body . The pulmonary vasculature and aorta are within normal limits . Minimal blunting of the costophrenic angles on lateral projection is unchanged may represent trace effusions versus scarring .
    OUTPUT:
    
1 . No evidence of retained radiopaque foreign body . 2 . Unchanged cardiomegaly .