Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates interval placement of a left - sided pleural catheter with improvement of the left pneumothorax with minimal left apical pneumothorax still visible . Otherwise , the support lines and tubes are unchanged . The remainder of the lung parenchyma appears slightly more edematous with increased interstitial markings than the prior radiograph .
    OUTPUT:
    
Interval placement of left pleural catheter with improvement in left pneumothorax .