Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of bilateral chest tubes after cardiac surgery . There is a small right apical pneumothorax . No left - sided pneumothorax is evident . There are ongoing basilar opacities , though slightly decreased compared to most recent prior examination , likely a combination of atelectasis and small bilateral pleural effusions . The upper lobes are clear . There is an expected postoperative appearance of cardiomediastinal contours . Median sternotomy closure devices appear intact .
    OUTPUT:
    
1 . Interval removal of bilateral chest tubes . New small right apical pneumothorax . 2 . Improved aeration of the lung bases , though with some persistent atelectasis and small bilateral effusions .