Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is at least mildly enlarged . The mediastinal and hilar contours are unremarkable , and there is no pulmonary edema . Minimal patchy opacities in the lung bases likely reflect atelectasis . Possible trace bilateral pleural effusions may be present posteriorly . No focal consolidation or pneumothorax is demonstrated . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with possible trace bilateral pleural effusions and bibasilar atelectasis .