Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable with mild tortuosity of the descending aorta . There is no pleural effusion or pneumothorax . Hyperinflation and flattened hemidiaphragms may be indicative of a chronic pulmonary process . A 5 mm density is seen in the left lower lung , stable since the prior study and probably a calcified granuloma , is likely of no clinical significance . Note is made of an old right clavicular fracture .
    OUTPUT:
    
No acute cardiopulmonary abnormality .