Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison the prior study there is slight enlargement of the left pleural effusion . There is also a small right pleural effusion , slightly larger . The lungs appear clear . The cardiac size is stable . There is no pulmonary edema . There is no pneumothorax .
    OUTPUT:
    
Slightly enlarged bilateral pleural effusions . No other evidence of acute cardiopulmonary process .