Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Calcification demonstrated in the region of the aortic arch can be correlated to calcified lymph nodes on concurrent CT examinations , stable since ___ . There is mild stable left apical scarring . There are no focal opacities concerning for pneumonia . There are no pleural effusions or pneumothorax . The cardiomediastinal and hilar contours are normal . Pulmonary vascularity is normal . There are findings compatible with diffuse idiopathic skeletal hyperostosis .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Calcified mediastinal and left hilar lymph nodes , stable since at least ___ , likely the sequelae of prior granulomatous exposure .