Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unremarkable , with the heart size within normal limits . Atherosclerotic calcifications are seen within the aortic knob . Pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is identified . Lateral view is somewhat limited due to low lung volumes . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality .