Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior study 1 hour earlier there has been placement of a left sided pleural catheter with the tip projecting over the mid left hemithorax . There is no significant change in the left pleural effusion . There is increased opacity in the right lung base . No pneumothorax .
    OUTPUT:
    
1 . Interval placement of a drainage catheter projecting over the left mid hemi thorax with little overall change in the large left pleural effusion . 2 . Interval development of right lower lung opacity which could reflect shifted pulmonary edema , effusion or aspiration .