Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since chest radiographs obtained approximately 8 hours prior , there is been interval removal of a left sided chest tube . Small , left , apical pneumothorax is unchanged . No mediastinal shift . Lungs are otherwise expanded and clear . Heart size is normal . Cardiomediastinal and hilar silhouettes and pleural surfaces are normal .
    OUTPUT:
    
Interval removal of left - sided chest tube . Unchanged , small , left , apical pneumothorax without tension .