Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The mediastinal contour is unchanged with atherosclerotic calcification noted of the thoracic aorta . Right basilar chest tube remains in unchanged position , with a similar appearance of the small right pleural effusion . No large left pleural effusion or pneumothorax is demonstrated . Streaky opacities in the lung bases , more pronounced on the right , likely reflect atelectasis . There is likely mild pulmonary vascular congestion with cephalization of pulmonary vasculature .
    OUTPUT:
    
Unchanged appearance of small right pleural effusion with right basilar chest tube in place . Mild bibasilar atelectasis with mild pulmonary vascular congestion .