Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the left chest tube . A possible left tiny pneumothorax is seen . There is stable focal pleural thickening in the left upper lobe . There is a small left pleural effusion that has decreased . The left basal opacity has also decreased . A small amount of subcutaneous emphysema in the left chest wall . The left lung remains clear .
    OUTPUT:
    
Stable appearance of the probable tiny left apical pneumothorax .