Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Feeding tube in situ with the tip in the distal stomach . Low lung volumes . The cardiomediastinal shadow is unchanged . Atelectatic changes in the lower lungs with possible associated effusions . Left - sided PICC line in situ with the tip at the cavoatrial junction . Left apical pneumothorax measuring 7 mm in diameter . Left pigtail chest drain in situ . Central chest drain in situ . The right - sided chest drain has been removed . No right - sided pneumothorax .
    OUTPUT:
    
Small left apical pneumothorax . The rest of the drains and tubes remain unchanged .