Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but decreased compared to the prior exam . Mediastinal and hilar contours are notable for mild tortuosity of thoracic aorta . Scattered atherosclerotic calcifications are noted in the aorta . Lungs are clear and the pulmonary vascularity is normal . There is no pleural effusion or pneumothorax . No acute osseous abnormalities are present . Nonaggressive sclerotic focus within the left proximal humerus likely reflects a bone island .
    OUTPUT:
    
No acute cardiopulmonary abnormality .