Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta is tortuous with calcification but otherwise the mediastinal and hilar contours are normal . There is increased density at the right lung base which is also seen on the lateral film , likely representing fibrosis . This was present on the prior study . Otherwise , the lungs are clear , and there are no new abnormalities seen . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Stable chest radiograph . Wet read was called to Dr . ___ by Dr . ___ ___ telephone at 14 : 26 , 5 minutes after time of discovery .