Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No pneumothorax is detected . Compared to the prior study , there has been continuing opacification of the left hemi thorax , as expected , at the site of the prior left pneumonectomy . Again seen is evidence of left - sided volume loss , including complete leftward displacement of the cardiomediastinal silhouette , leftward displacement of the trachea and carina , and elevation of left hemidiaphragm . Leftward herniation of the right lung is also again seen , slightly more pronounced than on the prior study . Again noted is deformity of the left thoracic cage and multiple surgical clips , consistent with prior surgery . On the right , again seen is pleural parenchymal opacity along the right lung apex and right upper chest wall . This appears slightly more pronounced , though this appearance could also be an artifact due to differences in technique . No new area of right - sided pleural parenchymal opacity is seen . No CHF , other focal opacity , or gross effusion is identified .
    OUTPUT:
    
1 . No pneumothorax detected . 2 . Status post left pneumonectomy , with evidence of volume loss , slightly more pronounced than on the prior study . 3 . Pleural parenchymal scarring at the right lung apex . This is similar to the prior study , though is could be slightly more pronounced allowing for technical differences . If clinically indicated , more direct comparison could be performed based on CT appearance . 4 . Otherwise , the right lung is grossly clear , without CHF , other focal opacities , or effusion .