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Japanese Journal of Clinical Oncology Advance Access published online on June 6, 2007
Japanese Journal of Clinical Oncology, doi:10.1093/jjco/hym038
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© 2007 Foundation for Promotion of Cancer Research

Proton Beam Therapy for Hepatocellular Carcinoma with Inferior Vena Cava Tumor Thrombus: Report of Three Cases

Masashi Mizumoto1,2,, Koichi Tokuuye1,2, Shinji Sugahara1,2, Masaharu Hata1,2, Nobuyoshi Fukumitsu1,2, Takayuki Hashimoto1,2, Kayoko Ohnishi2, Keiko Nemoto2, Kiyoshi Ohara2, Yasushi Matsuzaki3, Eriko Tohno4 and Yasuyuki Akine1,2

1 Proton Medical Research Center
2 Departments of Radiation Oncology
3 Gastroentelology
4 Diagnostic Radiology, University of Tsukuba, Tsukuba, Ibaraki, Japan

For reprints and all correspondence: Masashi Mizumoto, Proton Medical Research Center, University of Tsukuba, Tennoudai, Tsukuba, Ibaraki, 305-8575 Japan. E-mail: mizumoto{at}pmrc.tsukuba.ac.jp

Received October 24, 2006; accepted January 9, 2007

Three patients with hepatocellular carcinoma (HCC) and inferior vena cava tumor thrombus (IVCTT) were treated using proton beam therapy at the University of Tsukuba, Japan. A total dose of 50–70 Gy in 10–35 fractions was given to the primary tumor and IVCTT. All the patients survived for more than 1 year from the beginning of proton beam therapy (13–55 months) and no treatment-related toxicity of grade 3 or higher was observed. These cases suggest that proton beam therapy is safe and effective for patients with HCC associated with IVCTT.

Key Words: hepatocellular carcinoma • inferior vena cava tumor thrombus • proton beam therapy • radiation • hepatoma


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