Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . The lungs are well - expanded . Increased interstitial markings most notable in the lower lungs and perihilar region may reflect atypical pneumonia . Focal kyphosis at the thoracolumbar junction is again noted . The sternum is not well assessed on this study .
    OUTPUT:
    
1 . Increased interstitial markings concerning for atypical pneumonia . 2 . The sternum is not well assessed on this study .