Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Opacity over the right lower lung is consistent with recent right lower lobectomy . There is a right - sided chest tube and a small right apical pneumothorax . There are median sternotomy wires and mediastinal clips . There is right chest wall subcutaneous air . The left lung is clear .
    OUTPUT:
    
Expected postoperative sheath appearance status post right lower lobectomy . Small right apical pneumothorax .