Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no significant interval change from the prior study . Fiducial seen is projected over the right mid chest and there is a loculated complex effusion . There is evidence of a right apical lung mass with architectural distortion . This is consistent with prior radiation change . The known left upper lobe opacity is more difficult to see . The visualized osseous structures are grossly unremarkable .
    OUTPUT:
    
No significant interval the right - sided effusion . Extensive post treatment unchanged volume loss in the right side .