Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube tip is 3 .5 cm above the carinal . Right PICC line tip is in the right atrium . Cardiomegaly and mediastinal contours are unchanged . Pulmonary edema has worsened , substantial , asymmetric left more than right and superimposed infectious process is a possibility .
    OUTPUT:
    
Worsening pulmonary edema , as well as asymmetric opacity in the left lung can be infection or asymmetric edema .