Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison most recent prior chest radiograph from same - day , there is little change in the appearance of the thorax . Again seen is a large right pleural effusion , and a moderate left pleural effusion . There is left greater than right aeration of the left upper lungs , unchanged from prior . There is no pneumothorax identified .
    OUTPUT:
    
Stable chest radiograph . Large right and moderate left pleural effusions . No pneumothorax .