18 cases of radiation induced malignant tumor in nasopharyngeal carcinoma

YANG Yun li; LIU Ying xin; LU Hai jie; et al

doi:10.3971/j.issn.1000-8578.78

YANG Yun li, LIU Ying xin, LU Hai jie, et al, . 18 cases of radiation induced malignant tumor in nasopharyngeal carcinoma[J]. Cancer Research on Prevention and Treatment, 2003, 30(01): 60-61. DOI: 10.3971/j.issn.1000-8578.78

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18 cases of radiation induced malignant tumor in nasopharyngeal carcinoma

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Objective To study the incidence, latency, treatment and Prognosis of radiation induced malignant tumors. Methods A retrospective study was done on 18 cases of radiation induced malignancies. All original cancers were nasopharyngeal carcinoma, 12males and 6 femaes. The initial radiotherpy was 60 Co or 8MVX ray, Conventionally fractionated at dose of 70 86GY. Results After 3～19 years of the initial radiotherapy, 18 Patients developed tumors within the portal. There were: 5 squamous carcinoma of gum,...

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18 cases of radiation induced malignant tumor in nasopharyngeal carcinoma

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