Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Following LUL resection , there is persistent volume loss in the left hemithorax with expected leftward shift of the mediastinum and elevation of the left hemidiaphragm , similar to prior exam . Interval improvement in left retrocardiac opacity . There is a loculated anterior hydropneumothorax on the left . Significant subcutaneous emphysema along the left chest wall and left neck are similar to prior exam . Persistent small pleural effusions bilaterally . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Loculated left anterior hydropneumothorax . 2 . Significant subcutaneous emphysema along the left chest wall and left neck are similar to prior exam . 3 . Persistent small pleural effusions bilaterally .