Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear of focal opacities concerning for an infectious process . However , there is engorgement of the hila as compared to the prior study as well as an increase in the interstitial markings . These findings are consistent with pulmonary edema . The aorta is calcified . Cardiac size is normal . There are small bilateral pleural effusions . There is no pneumothorax .
    OUTPUT:
    
Small bilateral pleural effusions as well as engorgement of the hila and increased interstitial markings consistent with pulmonary edema .