Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 10 :30 is submitted .
    OUTPUT:
    
Given differences in technique , there is persistent bilateral airspace opacity which likely is not significantly changed but may reflect moderate to severe pulmonary edema or a diffuse infectious process . Clinical correlation is recommended . The heart remains enlarged likely reflecting cardiomegaly , although pericardial effusion should also be considered . No obvious pneumothorax . The left PICC line and right internal jugular central line continue to have their tips in the right atrium .