Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a right basilar opacity silhouetting the right cardiac margin . There is also a retrocardiac opacity as well . Blunting of the costophrenic angles bilaterally suggests persistent bilateral pleural effusions , left greater than right as seen on prior . The cardiomediastinal silhouette is otherwise unremarkable . Right sided central venous catheter is again noted . No acute osseous abnormalities .
    OUTPUT:
    
Bibasilar opacities potentially due to any combination of atelectasis or infection , slightly progressed since prior particularly on the left , some of which could be accounted for by lower lung volumes and technique . Small persistent bilateral effusions .