92例原发灶不明的颈部转移性癌治疗失败模式分析

doi:10.3760/cma.j.issn.1004-4221.2017.01.003

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Abstract

Objective To retrospectively analyze the treatment outcomes and failure patterns in patients with head-and-neck cancer of unknown primary head-and-neck cancer of unknown primary, and to compare the efficacy between elective mucosal irradiation and ipsilateral neck treatment. Methods The clinical data of patients with head-and-neck cancer of unknown primary who were admitted from January 2007 to December 2013 were retrospectively collected. Thirty-one patients received elective pharyngeal mucosal irradiation and 61 patients only received ipsilateral neck treatment. The SPSS 19.0 software was used for comparison of the survival and local control between the two groups. Results In the 92 patients, the median age was 57 years;79.3% had metastasis to level Ⅱ lymph nodes;the median follow-up time was 36.5 months;the 3-year overall survival, mucosal control, and neck control rates were 89.0%,86.6%,and 82.4%,respectively. Primary sites were found in 15 patients, containing nasopharynx in 4 patients, oropharynx in 3 patients, oral cavity in 3 patients, throat and hypopharyngeal part in 3 patients, maxillary sinus in 1 patient, and esophagus in 1 patient. The patients undergoing elective pharyngeal mucosal irradiation had significantly higher 3-year mucosal control and neck control rates than those undergoing ipsilateral neck treatment (100% vs. 74.9%,P=0.040;87.5% vs. 62.2%,P=0.037).There was no difference in the 3-year overall survival rate between the two groups (83.5% vs. 88.7%,P=0.910). Conclusions For patients with head-and-neck cancer of unknown primary,elective pharyngeal mucosal irradiation can reduce the incidence of primary site and increase the neck control rate. A new standard for target volume delineation should be established as soon as possible for elective prophylactic pharyngeal mucosal irradiation.

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	Articles by authors
	Dou Shengjin
	Qian Wei
	Li Rongrong
	Wang Zhuoying
	Zhu Guopei

Key words： Tumor,unknown primary Tumor metastasis,cervical lymph node Prophylactic irradiation

Received: 19 April 2016

Corresponding Authors: Zhu Guopei,Email:antica@gmail.com;Wang Zhuoying,Email:zhuoyingwang@hotmail.com

Cite this article:

Dou Shengjin,Qian Wei,Li Rongrong et al. Patterns of failure in head-and-neck cancer of unknown primary:a study of 92 patientshead-and-neck cancer of unknown primary[J]. Chinese Journal of Radiation Oncology, 2017, 26(1): 12-16.

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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.issn.1004-4221.2017.01.003 OR http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2017/V26/I1/12

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