Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right lung is clear . A stable tiny right - sided pleural effusion is observed , but there is no evidence of right - sided pneumothorax . The patient is status post left total pneumonectomy , with leftward displacement of the mediastinum and a fluid occupied left hemithorax . Multiple rib osteotomies as well as surgical clips are noted in the left side related to surgical procedure . A pigtail catheter has ___ placed in the interval and ends in the mid left thorax .
    OUTPUT:
    
Interval placement of pigtail catheter in the left hemithorax . Otherwise unchanged from prior exam .