Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The appearance of the right lung is stable status post partial right lung resection with pleural changes consistent with history of empyema . The left lung is clear without focal consolidation or pleural effusion . No pneumothorax . Heart size is normal and rightward shift of the mediastinal structures is unchanged . Rounded focus with sclerotic borders projecting over the posterolateral right 9th rib is unchanged since ___ and may represent a healed rib fracture . No new displaced rib fracture .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Chronic right lung changes consistent with partial lung resection .