Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . The pacemaker is seen overlying the left anterior chest with intact leads in appropriate position . The lungs are well expanded and clear . The right hemidiaphragm is a little higher on this exam than on prior , likely representing increased eventuration . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unchanged from prior exam .
    OUTPUT:
    
No acute cardiopulmonary process .