Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are stable , normal . The pulmonary vasculature is normal . Again seen is a small left hydro pneumothorax is unchanged in size from the most recent prior . Small bilateral pleural effusions and bibasilar atelectasis is not significantly changed .
    OUTPUT:
    
1 . Small left hydro pneumothorax is stable . 2 . Small bilateral pleural effusions and bibasilar atelectasis unchanged .