Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right - sided PICC line that terminates most likely at the confluence of the brachiocephalic veins . The heart is enlarged . There is bilateral hilar congestion , and in addition to mild pulmonary edema , asymmetric opacification of the left mid to lower lung .
    OUTPUT:
    
Findings suggest mild zone pulmonary edema , but with concern for focal opacification in the left lower lung which may indicate coinciding atelectasis or pneumonia .