Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided chest tube appears unchanged in position . Subcutaneous emphysema near its entry site persists but has decreased substantially . There is a very small pneumothorax on the right . The distance between the outer pleural edge and inner chest wall is at most a 8 mm . On the earlier radiographs from the same day , the pneumothorax was not as well seen ; it is probably similar to slightly increased . Streaky opacities retrocardiac opacities indicate minor unchanged atelectasis at the left lung base . There is no definite pleural effusion . Embolization coils project over the right upper quadrant of the abdomen .
    OUTPUT:
    
Very small persistent right apical pneumothorax . Chest tube in place on the right .