Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of chest were examined . The heart size is normal . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Chronic fibrotic changes are again seen , but there is no increased opacification concerning for acute superimposed pneumonia .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Stable chronic fibrotic changes again seen .