Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . Aorta is tortuous but unchanged . There are diffuse calcifications of the thoracic aorta . The pulmonary vascularity is normal . Linear opacities within the left lower lobe may reflect subsegmental atelectasis versus scarring . Calcified granuloma in the right upper lobe is unchanged . There is no focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormalities identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Left lower lobe segmental atelectasis versus scarring .