Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 09 :47 is submitted .
    OUTPUT:
    
Interval decrease in size but persistent small right apical pneumothorax . Right chest tube remains in place . Overall the lungs are grossly clear . Surgical chain sutures in the right lower hemithorax consistent with known right lower lobectomy . No pulmonary edema . Cardiac mediastinal contours are within normal limits . Subcutaneous emphysema air within the right lateral chest wall . No large effusions .