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Radiation for Dermatofibrosarcoma Protuberans

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Radiation Therapy for Sarcomas and Skin Cancers

Part of the book series: Practical Guides in Radiation Oncology ((PGRO))

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Abstract

Dermatofibrosarcoma protuberans (DFSP) is a rare, slow-growing malignancy that originates in the deep layers of the skin. It can be locally aggressive but metastasizes very rarely. DFSP is low grade. If a higher-grade fibrosarcomatous component is present, it should be treated as a soft-tissue sarcoma. Initial misdiagnosis is common, and inexperienced physicians often treat too conservatively, leading to a prolonged clinical course. Once the diagnosis is confirmed with a deep biopsy, the correct initial management is surgical excision, using a method that ensures that the margin of the specimen is completely assessed. Adjuvant radiotherapy is indicated for close/positive margins that cannot be re-resected, for unresectable disease, or for use as adjuvant therapy in a location where recurrence and second surgery would be unacceptably morbid. Imatinib has proven useful for unresectable disease unresponsive to radiation and may be helpful in attempting to convert unresectable disease to resectability.

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Correspondence to Kathryn E. Hitchcock .

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Hitchcock, K.E., Mendenhall, W.M. (2022). Radiation for Dermatofibrosarcoma Protuberans. In: Kim, E., Parvathaneni, U., Welliver, M.X. (eds) Radiation Therapy for Sarcomas and Skin Cancers. Practical Guides in Radiation Oncology. Springer, Cham. https://doi.org/10.1007/978-3-031-06706-8_11

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  • DOI: https://doi.org/10.1007/978-3-031-06706-8_11

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