Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged . Linear opacities within the left upper lobe and lingula are unchanged , compatible with post radiation changes . No focal consolidation , pleural effusion or pneumothorax is detected . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .