Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath again terminates at the cavoatrial junction . It s looped course appears unchanged . Allowing for decreased lung volumes , the cardiac , mediastinal and hilar contours are probably unchanged . There is a persistent small - to - moderate right - sided pleural effusion , probably largely subpulmonic . It appears apparently decreased on the frontal view but given its size on the lateral it may be unchanged . There is also a small pleural effusion on the left . Interstitial opacification has increased somewhat . Although differential considerations include atypical infectious processes , findings probably reflect mild pulmonary edema . Aeration is better at the left lung base , but there is patchy increase in retrocardiac opacity .
    OUTPUT:
    
1 . Increased interstitial abnormality , not specific but suggesting mild pulmonary edema . 2 . Increased opacity in posterior left lower lobe , probably atelectasis , although it is hard to exclude developing pneumonia . Short - term follow - up radiographs may be helpful to reassess .