Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The mediastinal and hilar contours are unremarkable , with minimal atherosclerotic calcifications noted at the aortic knob . The pulmonary vasculature is normal . Scarring is demonstrated within the lung apices . Persistent linear opacities within the right lung base likely reflect areas of scarring . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .