Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperinflated . A poorly defined peripheral opacity measuring 5 .5 cm in diameter persists in the periphery of the left mid lung , corresponding to the site of the patient 's treated lung cancer in this region with adjacent fiducial seeds . Adjacent rib abnormalities are similar to prior radiographs . No new areas of consolidation are identified within the lungs , and there are no definite pleural effusions . Cardiomediastinal contours are stable .
    OUTPUT:
    
Similar post treatment appearance of the chest . No superimposed foci of pneumonia . Consider chest CT if there is strong clinical suspicion for recurrent neoplastic disease or infection .