Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 10 :00 is submitted .
    OUTPUT:
    
A feeding tube remains unchanged with its tip projecting over the stomach . There continues to be persistent opacity at both lung bases suggestive of at least partial atelectasis of the right lower and middle lobes and the left lower lobe and lingula . Superimposed infection can not be excluded . Given differences in technique and positioning , no significant interval change is seen . Overall cardiac and mediastinal contours are likely unchanged . No pulmonary edema . No pneumothorax . Patient 's mandible obscures a portion of the right apex . Calcified bilateral saline breast implants are again seen .