Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a right - sided chest tube , with interval decrease in right chest wall and neck subcutaneous gas . A small right apical pneumothorax is present . Right lower lung airspace opacity in the region of chain sutures is improving over time . There is adjacent linear atelectasis , there is marked right chest wall pleural thickening . Fluid is seen in the right major fissure . The remainder of the lungs remain clear . The cardiac silhouette remains normal in size , mediastinal contours are normal .
    OUTPUT:
    
Postoperative changes in the right lower lung , with marked pleural thickening . There has been interval removal of right chest tube , and there is a small apical right pneumothorax . Interval decrease in subcutaneous gas .