Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate right - sided pleural effusion , as seen on the recent CT , with associated parenchymal opacity , most suggestive of atelectasis . The pleural effusion is similar to the recent prior CT but possibly decreased somewhat since the prior radiographs , although a possible difference in patient orientation is a confounding factor regarding the comparison . The left lung remains clear . A PICC line terminates at the cavoatrial junction .
    OUTPUT:
    
Persistent right - sided pleural effusion , possibly decreased . PICC line terminating at the cavoatrial junction . Although pneumonia can not be excluded , findings on the CT from the prior day were suggestive of atelectasis . Superimposed infection is difficult to exclude , however .