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Three Cases of Radiation-Induced Hepatitis B Virus Reactivation after Hepatic Tomotherapy: Case Report

간암의 토모테라피 후 발생한 B형 간염 바이러스 재활성화 3예: 증례보고

  • Kong, Moon-Kyoo (Department of Radiation Oncology, Kyung Hee University College of Medicine) ;
  • Hong, Seong-Eon (Department of Radiation Oncology, Kyung Hee University College of Medicine) ;
  • Kim, Byung-Ho (Department of Internal Medicine, Kyung Hee University College of Medicine) ;
  • Choi, Jin-Hyun (Department of Radiation Oncology, Kyung Hee University College of Medicine)
  • 공문규 (경희대학교 의과대학 방사선종양학교실) ;
  • 홍성언 (경희대학교 의과대학 방사선종양학교실) ;
  • 김병호 (경희대학교 의과대학 내과학교실) ;
  • 최진현 (경희대학교 의과대학 방사선종양학교실)
  • Received : 2010.12.08
  • Accepted : 2011.02.23
  • Published : 2011.03.30

Abstract

Radiation-induced liver disease (RILD) has been characterized as a veno-occlusive disease with anicteric elevation of alkaline phosphatase (ALP). However, some RILD patients present with elevated transaminase levels rather than with anicteric elevation of ALP, and these findings are common in the Asia-Pacific region where hepatitis B virus (HBV) infection is associated with 70~90% of hepatocelluar carcinoma (HCC) cases. In addition, the development of RILD is more common in patients with hepatitis B virus-related HCC. These findings indicate that susceptibility to RILD might be different in HBV carriers and non-carriers, and moreover, RILD in patients with HBV-related HCC might be associated with another unique pathogenesis such as HBV reactivation. However, HBV reactivation after hepatic irradiation has been reported in only a few studies. This study reports three cases of HBV reactivation alter hepatic tomotherapy for management of HCC.

방사선간염은 대개 황달을 동반하지 않은 알칼리인산 분해효소(alkaline phophatase)의 상승을 특징으로 보인다. 하지만, 방사선간염 환자의 일부에서는 아미노전달효소(transaminase)의 상승을 특징적인 소견으로 보이고, 이러한 소견은 특히 간암 환자의 70~90%가 B형 간염 바이러스 보균자인 아시아 지역에서 흔하게 관찰된다. 또한 B형 간염 바이러스 보균자인 간암 환자를 방사선으로 치료했을 때 방사선간염이 더 흔하게 발생한다. 이런 사실들은 B형 간염 바이러스 보균자에서 방사선간염의 발생 기전이 비보균자에서의 그것과 다를 수 있다는 것을 시사하고, B형 간염 바이러스 보균자에서 발생하는 방사선간염의 발생기전은 B형 간염 바이러스의 재활성화와 연관이 있을 것으로 추측된다. 하지만, 현재 간암의 방사선치료 후 B형 간염 바이러스의 재활성화에 대한 연구는 미미한 수준이다. 이에 저자들은 간암 환자의 토모테라피 후 발생한 B형 간염 바이러스 재활성화 3예를 보고하고자 한다.

Keywords

References

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