Abstract
A 47-year-old female was admitted for an evaluation of a left mediastinal mass. The chest X-ray performed 16 months ago was normal, but the chest X-ray upon admission showed a large mass adjacent to the anterior aspect of the left hemidiaphragm. The CT scan demonstrated a large mass with a fat density in the left lower hemithorax. A focal diaphragmatic defect behind the xiphoid process was suspected. A thoracoscopic examination revealed omental herniation through the diaphragmatic defect. Therefore, a left thoracotomy was performed and the defect was repaired. We believe that a differential diagnosis should be needed to include a diaphragmatic omental hernia when a fat density mass is observed in the mediastinum.
47세 여자가 흉부 엑스선상 종격동 종괴가 우연히 발견되어 입원하였다. 16개월전 흉부 엑스선은 정상이었고 흉부 전산화단층촬영에서 좌측 흉곽 하부에 미세한 선음영을 포함한 지방 음영 종괴가 관찰되었고 횡격막의 결손이 의심되었다. 흉강경을 시행하여 그물막 이탈을 확인하였고 개흉술을 통해 횡격막 복원술을 시행하였다. 저자들은 지방음영의 종격동 종괴가 관찰되었을 때는 감별진단에 반드시 그물막의 횡격막 이탈을 생각하여야 할 것으로 생각한다.
