Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lingular consolidation has been a change in configuration but does not appear worsened . Interval improvement can not be confirmed with certainty . Otherwise the lungs are clear . The cardiomediastinal and hilar contours are normal . The pleural surfaces are normal . No pneumothorax .
    OUTPUT:
    
Probable , but not certain , improvement of lingular consolidation . Close surveillance and re- evaluation is recommended in ___ weeks despite any clinical improvement of the patient .