Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New left - sided PleurX catheter with a medial course . Moderate to large loculated effusion slightly decreased since the prior . No visualized pneumothorax . Small right - sided effusion . Bibasilar opacities and retrocardiac opacity can be atelectasis . No pulmonary edema .
    OUTPUT:
    
No pneumothorax . Moderate to large loculated effusion slightly decreased since the prior .