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Iwai T, Imagumbai T, Hiraoka S, Kishi T, Okabayashi S, Ashida R, Mitsuyoshi T, Matsuo Y, Ishigaki T, Mizowaki T, Kokubo M. Clinical outcomes of scalp or face angiosarcoma treatment with intensity-modulated radiotherapy: a multicenter study. JOURNAL OF RADIATION RESEARCH 2024; 65:78-86. [PMID: 37996084 PMCID: PMC10803163 DOI: 10.1093/jrr/rrad089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/04/2023] [Accepted: 10/10/2023] [Indexed: 11/25/2023]
Abstract
Combined modality therapy, including radiotherapy (RT), is a common treatment for scalp or face angiosarcoma. Although intensity-modulated radiotherapy (IMRT) can deliver homogeneous doses to the scalp or face, clinical data are limited. This multicenter study aimed to evaluate scalp or face angiosarcoma treated with definitive or post-operative IMRT. We retrospectively analyzed data from patients who received IMRT for scalp or face angiosarcoma at three institutions between January 2015 and March 2020. Local control (LC) rate, overall survival (OS), progression-free survival (PFS), recurrence patterns and toxicity were evaluated. Fifteen patients underwent IMRT during the study period. Definitive RT was performed on 10 patients and post-operative RT was performed on 5 patients. The 1-year LC rate was 85.7% (95% confidence interval [CI], 53.9-96.2%). The 1-year OS and PFS rates were 66.7% (95% CI, 37.5-84.6%) and 53.3% (95% CI, 26.3%-74.4%), respectively. Univariate analysis revealed that a clinical target volume over 500 cm3 was associated with poor LC. Distant metastasis was the most common recurrence pattern. All patients experienced Grade 2 or 3 radiation dermatitis, and five patients experienced grade ≥ 3 skin ulceration. One patient who underwent maintenance therapy with pazopanib developed Grade 5 skin ulceration. Fisher's exact test showed that post-operative RT was significantly associated with an increased risk of skin ulceration of grade ≥ 3. These results demonstrate that IMRT is a feasible and effective treatment for scalp or face angiosarcoma, although skin ulceration of grade ≥ 3 is a common adverse event in patients who receive post-operative RT.
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Affiliation(s)
- Takahiro Iwai
- Department of Radiation Oncology, Kobe City Medical Center General Hospital, Minamimachi 21-1, Minatojima, Chuo-ku, Kobe 650-0047, Hyogo, Japan
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, 606-8507, Kyoto, Japan
| | - Toshiyuki Imagumbai
- Department of Radiation Oncology, Kobe City Medical Center General Hospital, Minamimachi 21-1, Minatojima, Chuo-ku, Kobe 650-0047, Hyogo, Japan
| | - Shinya Hiraoka
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, 606-8507, Kyoto, Japan
| | - Takahiro Kishi
- Department of Radiation Oncology, Osaka Red Cross Hospital, 5-30 Fudegasaki-cho, Tennoji-ku, 543-8555, Osaka, Japan
| | - Shun Okabayashi
- Department of Radiation Oncology, Kobe City Medical Center General Hospital, Minamimachi 21-1, Minatojima, Chuo-ku, Kobe 650-0047, Hyogo, Japan
| | - Ryo Ashida
- Department of Radiation Oncology, Kobe City Medical Center General Hospital, Minamimachi 21-1, Minatojima, Chuo-ku, Kobe 650-0047, Hyogo, Japan
| | - Takamasa Mitsuyoshi
- Department of Radiation Oncology, Kobe City Medical Center General Hospital, Minamimachi 21-1, Minatojima, Chuo-ku, Kobe 650-0047, Hyogo, Japan
| | - Yukinori Matsuo
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, 606-8507, Kyoto, Japan
- Department of Radiation Oncology, Faculty of Medicine, Kindai University, 377-2, Ohno-Higashi, Osaka-Sayama, 589-8511, Osaka, Japan
| | - Takashi Ishigaki
- Department of Radiation Oncology, Osaka Red Cross Hospital, 5-30 Fudegasaki-cho, Tennoji-ku, 543-8555, Osaka, Japan
| | - Takashi Mizowaki
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, 606-8507, Kyoto, Japan
| | - Masaki Kokubo
- Department of Radiation Oncology, Kobe City Medical Center General Hospital, Minamimachi 21-1, Minatojima, Chuo-ku, Kobe 650-0047, Hyogo, Japan
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