Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control

Angiosarcoma is believed to be refractory to radical radiotherapy. Although no effective treatment for radiation-induced angiosarcoma has been established, surgery is generally chosen. We report a case of unresectable radiation-induced angiosarcoma after breast cancer surgery that responded remarkab...

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Main Authors: Tsutomu Ikenohira, Kenta Konishi, Masanori Hirata, Keiichi Ohira, Katsumasa Nakamura
Format: Article
Language:English
Published: Karger Publishers 2021-12-01
Series:Case Reports in Oncology
Subjects:
Online Access:https://www.karger.com/Article/FullText/519596
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author Tsutomu Ikenohira
Kenta Konishi
Masanori Hirata
Keiichi Ohira
Katsumasa Nakamura
author_facet Tsutomu Ikenohira
Kenta Konishi
Masanori Hirata
Keiichi Ohira
Katsumasa Nakamura
author_sort Tsutomu Ikenohira
collection DOAJ
description Angiosarcoma is believed to be refractory to radical radiotherapy. Although no effective treatment for radiation-induced angiosarcoma has been established, surgery is generally chosen. We report a case of unresectable radiation-induced angiosarcoma after breast cancer surgery that responded remarkably to radical radiotherapy alone. A 78-year-old Japanese female had a large mass in her right breast that was diagnosed as angiosarcoma after biopsy and considered to be a radiation-induced angiosarcoma because the patient had been treated with postoperative irradiation to the right breast cancer 8 years earlier. There were no findings suggestive of lymphadenopathy or distant metastasis. Since the tumor was widely infiltrated to the skin and the muscle layer, radical radiotherapy (total dose 66 Gy) was performed. At this radiotherapy completion, the tumor was remarkably reduced, and there were no acute adverse effects except for grade 2 dermatitis. Pazopanib was started after radiotherapy but was discontinued since necrosis of the wound with hemorrhage was observed. External pneumothorax occurred due to the marked tumor shrinkage, but it was cured by conservative care. Although angiosarcoma is well known to be radioresistant, excellent local control may be obtained by radical radiotherapy in some cases. Radiotherapy should be considered as a treatment option in inoperable cases.
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spelling doaj.art-87c21794b24f41b3b804d972ad3924c82022-12-21T17:49:22ZengKarger PublishersCase Reports in Oncology1662-65752021-12-011431779178410.1159/000519596519596Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local ControlTsutomu IkenohiraKenta KonishiMasanori HirataKeiichi OhiraKatsumasa NakamuraAngiosarcoma is believed to be refractory to radical radiotherapy. Although no effective treatment for radiation-induced angiosarcoma has been established, surgery is generally chosen. We report a case of unresectable radiation-induced angiosarcoma after breast cancer surgery that responded remarkably to radical radiotherapy alone. A 78-year-old Japanese female had a large mass in her right breast that was diagnosed as angiosarcoma after biopsy and considered to be a radiation-induced angiosarcoma because the patient had been treated with postoperative irradiation to the right breast cancer 8 years earlier. There were no findings suggestive of lymphadenopathy or distant metastasis. Since the tumor was widely infiltrated to the skin and the muscle layer, radical radiotherapy (total dose 66 Gy) was performed. At this radiotherapy completion, the tumor was remarkably reduced, and there were no acute adverse effects except for grade 2 dermatitis. Pazopanib was started after radiotherapy but was discontinued since necrosis of the wound with hemorrhage was observed. External pneumothorax occurred due to the marked tumor shrinkage, but it was cured by conservative care. Although angiosarcoma is well known to be radioresistant, excellent local control may be obtained by radical radiotherapy in some cases. Radiotherapy should be considered as a treatment option in inoperable cases.https://www.karger.com/Article/FullText/519596radiation-induced angiosarcomaradical radiotherapy-alonejapanese
spellingShingle Tsutomu Ikenohira
Kenta Konishi
Masanori Hirata
Keiichi Ohira
Katsumasa Nakamura
Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control
Case Reports in Oncology
radiation-induced angiosarcoma
radical radiotherapy-alone
japanese
title Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control
title_full Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control
title_fullStr Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control
title_full_unstemmed Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control
title_short Radical Radiation Therapy for Radiation-Induced Angiosarcoma with Local Control
title_sort radical radiation therapy for radiation induced angiosarcoma with local control
topic radiation-induced angiosarcoma
radical radiotherapy-alone
japanese
url https://www.karger.com/Article/FullText/519596
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AT keiichiohira radicalradiationtherapyforradiationinducedangiosarcomawithlocalcontrol
AT katsumasanakamura radicalradiationtherapyforradiationinducedangiosarcomawithlocalcontrol