Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right costophrenic angle is excluded from the field of view . The heart size appears to be mildly enlarged with a left ventricular predominance , though assessment is somewhat limited due to the presence of bilateral pleural effusions , moderate on the right and small to moderate on the left . The aortic knob is calcified . The mediastinal contours are unremarkable . Bibasilar airspace opacities may reflect atelectasis though infection can not be completely excluded . Partially imaged is a percutaneous transhepatic biliary catheter .
    OUTPUT:
    
Bilateral pleural effusions , moderate on the right and small to moderate on left , with bibasilar airspace opacities , likely atelectasis though infection can not be completely excluded . No free air under the diaphragms .