Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval placement of pigtail catheter in the left lung base . The partially loculated left pleural effusion is stable since ___ , however , is increased since ___ . The heart size is unchanged . The right lung is clear . The left rib fractures are better assessed on recent CTA chest . No pneumothorax .
    OUTPUT:
    
1 . Interval placement of pigtail catheter in the left lung without evidence of pneumothorax . 2 . The partially loculated left pleural effusion is stable since ___ , but increased since ___ . 3 . Left rib fractures are better assessed on recent CTA chest .