Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest examinations , lung volumes are decreased . The cardiac silhouette appears mildly enlarged . There is mild tortuosity of the descending aorta . The mediastinal contours are within normal limits . There is mild atelectasis of the right lung base . Mild blunting of the bilateral costophrenic angles likely represent small pleural effusions . There is no focal consolidation or pneumothorax .
    OUTPUT:
    
Probable small bilateral pleural effusions . No acute cardiopulmonary findings .