Chylopericardial Tamponade Accompanied by Chylothorax after Right Upper Lobectomy: A Rare but Fatal Postoperative Complication

To our knowledge, this is the first report of postoperative death due to chylopericardial tamponade accompanied by postoperative chylothorax. Although this is a scarce complication, it can be fatal, and thoracic surgeons who perform pulmonary resection with mediastinal lymph node dissection should be aware of this phenomenon. In cases of postoperative chylothorax with concurrent pericardial effusion, the possibility of developing chylopericardial tamponade should be considered, and active consideration of pericardial drainage is recommended.