Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with chest radiograph or few hours earlier , there has been interval removal of a left chest tube . There is a small left apical pneumothorax without evidence of tension . Otherwise , there is little change . Right internal jugular line terminates in the lower SVC . Persistent mild bibasilar atelectasis . Mediastinal and cardiac contours are stable .
    OUTPUT:
    
Small left apical pneumothorax . No evidence of tension .