Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest provided . The left hemithorax is air-filled , not unexpected from recent left pneumonectomy . There is a tubular opacity adjacent to the left hilum , likely a stump . Left sided chest tube tip is at the left apex . Right lung is clear . Cardiomediastinal and hilar contours are normal . Fracture of the poster ___ rib is seen .
    OUTPUT:
    
Left perihilar tubular opacity , likely a stump . Attention on follow - up is recommended . Otherwise , expected postoperative appearance .