Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse airspace opacities have increased since the prior radiograph from ___ . This may be secondary to superimposed edema , however there are no pleural effusions . Heart size is stable . No pneumothorax . Left PICC line terminates in the upper SVC .
    OUTPUT:
    
Interval progression of bilateral airspace opacities compared to the prior radiograph from ___ which may signify mild superimposed edema . No new pleural effusion .