Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 03 :53 is submitted .
    OUTPUT:
    
The right - sided chest tubes remain in place . There is stable scarring and volume loss within the right hemithorax with no obvious residual basilar right hydropneumothorax appreciated . No pulmonary edema . Streaky opacity at the left base likely reflects scarring or subsegmental atelectasis . Stable cardiac enlargement status post median sternotomy with valve replacement .