Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are bilateral pleural effusions , right greater than left . The right effusion is larger than the prior radiograph on ___ . There is also opacification of the left lung base , which likely represents compression atelectasis , but pneumonia can not be excluded in the appropriate clinical setting . No pneumothorax . There is minimal calcification of the aortic arch . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
There are bilateral pleural effusions , right greater than left . Right effusion is worse compared to ___ .