Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left PICC line has been removed . Right IJ catheter extends to the mid portion of the SVC . Patchy opacification at the left base could reflect merely atelectasis . However , in the appropriate clinical setting , this certainly could represent acute pneumonia .
    OUTPUT:
    
Opacification at the left base that could reflect acute pneumonia in the appropriate clinical setting .