Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal with mild tortuosity of the thoracic aorta with note made of atherosclerotic mural calcifications . The hilar contours are unremarkable . Lungs are clear . Pleural surfaces are clear without effusion or pneumothorax . There are redemonstration of chronic changes from healed prior right mid clavicular fracture as well as degenerative changes of the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .