Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pneumothorax . The appearance of the right lung is overall similar with opacification at the right apex and the base . Slightly increased interstitial markings in the left lung may indicate some mild vascular congestion , but this is difficult to determine without a baseline chest radiograph examination . There is no new consolidation concerning for pneumonia .
    OUTPUT:
    
No new focal consolidation concerning for pneumonia . Chronic changes of the right lung .