Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior study , a new right - sided Port - A - Cath tip projects at the cavoatrial junction . Prominent pericardial fat pads are unchanged . Bibasilar atelectasis is new . Faint opacity overlying the left upper lobe is new since ___ . No evidence of pneumothorax . Nodular opacity projecting over the right posterior fifth rib may represent summation of shadows , as there is no correlate on the recent chest CT of ___ .
    OUTPUT:
    
Faint opacity overlying the left upper lobe is new since ___ and may indicate a developing infection , given the clinical history .