Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest , when compared to the prior study , demonstrate no change in the large left and moderate right pleural effusions . Continued bibasilar atelectasis is unchanged . The cardiac contour is again obscured by the large left pleural effusion and the mediastinum is unremarkable . There is no focal opacity concerning for infection .
    OUTPUT:
    
Unchanged large left and moderate right pleural effusions .