Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Atherosclerotic calcifications of the aortic knob are present . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .