Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pleural effusion or pneumothorax . Lobulation of the mediastinal contour of the main pulmonary artery and the left hilus could be due to mild adenopathy . Any prior radiographs should be obtained to see if this is a new finding . If stability can not be determined , I recommend repeat CXR in 4 weeks .
    OUTPUT:
    
No pneumonia . Possible mild central adenopathy requires follow ___ ___ ___ was paged .