Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 05 : 14 is submitted .
    OUTPUT:
    
Left bronchial stents , wires and upper mediastinal drain remain in place with no change in appearance of the left apical opacity . There are stable postoperative mediastinal changes . The heart is stable in size . Patchy opacity in the left costophrenic angle is suggestive of patchy atelectasis . There may be a small left effusion . Right lung is well inflated and clear . No pneumothorax .