Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the chest radiograph from a day earlier , left side pigtail catheter in similar position . Left - sided large pleural effusion has increased . There is also mild increasing interstitial edema . The lung volumes have decreased with increasing right basal atelectasis .
    OUTPUT:
    
Increasing large left effusion and mild interstitial edema .