Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 22 :08 is submitted .
    OUTPUT:
    
Interval placement of bilateral pigtail pleural catheters with decrease in size of the pleural effusions and overall improved aeration of the lungs , particularly at the bases . However , there continues to be patchy bibasilar opacities likely reflecting compressive atelectasis . No pulmonary edema or large pneumothorax is appreciated . Overall cardiac and mediastinal contours are within normal limits given portable technique . Left internal jugular central line and left subclavian PICC line are unchanged in position .