Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided chest tube is in unchanged position . A right - sided Port - A - Cath terminates at the cavoatrial junction as before . An enteric tube terminates just past the GE junction . The cardiomediastinal and hilar contours are within normal limits . Previously seen perihilar edema has improved from the prior examination . A left basal opacity is decreased in size from the prior examination consistent with pleural effusion and left lower lobe collapsed . Mild right basal atelectasis .
    OUTPUT:
    
1 . Lines and tubes as above . 2 . Left basal opacity is decreased in size from the prior examination consistent with left lower lobe collapse and effusion . 3 . Minimal right basal atelectasis . Postoperative pneumoperitoneum persists . 4 . Perihilar pulmonary vascular congestion appears improved from the prior exam .