Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the study from earlier on the same date , no significant change in the left apical pneumothorax without evidence of tension . Left - sided chest tube and left subclavian catheter are unchanged in position . The lungs are otherwise clear without effusion or pneumonia . Subcutaneous emphysema over the left chest wall is unchanged . Significant degenerative change at the lateral left humeral head is also unchanged .
    OUTPUT:
    
Unchanged left apical pneumothorax , without evidence of tension .