Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Midline tracheostomy tube is seen . Dual - lumen right - sided catheter is again seen unchanged in position , terminating at the cavoatrial junction and low SVC . There are small bilateral pleural effusions with overlying atelectasis likely decreased in the left as compared to the prior study . No overt pulmonary edema is seen . The cardiac silhouette is not enlarged . The mediastinal contours are normal . Bibasilar atelectasis is seen .
    OUTPUT:
    
Persistent small pleural effusions with interval decrease in size on the left since the prior study .