Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views demonstrate placement of a pigtail catheter in the left pleural space with interval decrease in a small to moderate pleural effusion . There is evidence for minimal gas in the left pleural space . There is subsegmental atelectasis in the underlying left lung and parenchymal consolidation in the left lung can not be excluded . The left heart border is obscured .
    OUTPUT:
    
Placement of left pleural catheter .