https://scholars.lib.ntu.edu.tw/handle/123456789/518337
標題: | Radiation-induced chondrosarcoma of the external ear canal - Case report | 作者: | Chi C.-H Lin H.-H PEI-JEN LOU |
關鍵字: | Chondrosarcoma; External ear canal; Nasopharyngeal carcinoma; Radiation-induced sarcoma | 公開日期: | 1999 | 卷: | 34 | 期: | 5 | 起(迄)頁: | 436-439 | 來源出版物: | Journal of Taiwan Otolaryngology - Head and Neck Surgery | 摘要: | Radiation therapy is the mainstay treatment for nasopharyngeal carcinoma (NPC). Nevertheless, the incidence of radiation-induced sarcoma (RIS) remains low in patients with NPC, and radiation-induced chondrosarcoma has not been reported. Herein, we report the case of a 45-year-old man who developed radiation-induced chondrosarcoma in the cartilaginous ear canal eight years after receiving radiation therapy for an NPC. On admission, he complained of tenderness and swelling in the left ear canal. Physical examination revealed a smooth bulging mass originating from the cartilaginous ear canal. Lateral temporal bone resection was performed and pathological examination revealed chondrosarcoma. The post-operative course was smooth and no evidence of tumor recurrence was found during the follow-up of 8 months. The location of the tumor, the interval after previous irradiation, and the histological findings were all consistent with a diagnosis of RIS. To our knowledge, this is the first reported case of radiation-induced chondrosarcoma. Because early diagnosis of RIS offers the only chance for cure, early work-up of any fresh pain and swelling in an irradiated field is vital. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032726613&partnerID=40&md5=461b74ca15fb5a56990790301ef017f2 https://scholars.lib.ntu.edu.tw/handle/123456789/518337 |
ISSN: | 1019-6102 | SDG/關鍵字: | adult; article; bone resection; cancer radiotherapy; case report; chondrosarcoma; early diagnosis; external auditory canal; human; male; nasopharynx carcinoma; postoperative period; tumor recurrence |
顯示於: | 醫學系 |
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