鼻咽癌区域淋巴结转移的影像学分析

发布时间：2018-10-26 07:23

【摘要】：目的：本研究旨在探讨鼻咽癌区域淋巴结转移的影像特点,为临床分期、治疗及预后判定提供依据。 资料与方法：收集2009年1月至2011年6月间1298例经病理证实的在广西医科大学第一附属医院放射科行MRI检查的首诊鼻咽癌患者影像资料,并根据RTOG2006版影像学颈部淋巴结分区标准确定淋巴结位置,分析淋巴结在各区分布特点及跳跃性转移情况,同时分析不同T分期各区淋巴结转移率及淋巴结不同直径之间包膜外侵的差别。 结果：本组患者中有1067例(82.2%)出现转移淋巴结,各区分布如下：Ⅰb区20例(1.5%),Ⅱa区604例(46.5%),Ⅱb区883例(68.0%),Ⅲ区330例(25.4%),Ⅳ区78例(6.0%),Ⅴa区162例(12.5%),Ⅴb区49例(3.8%),咽后967例(74.5%),跳跃性转移9例(0.69%)。各区共检出转移淋巴结2464个,其中包膜外侵1589个(64.52%),包膜外侵比例随淋巴结直径增大而增大(P=0.000)。淋巴结转移与T分期之间无明确相关性。 结论：鼻咽癌区域淋巴结转移以Ⅱ区和咽后淋巴结最多见；Ⅰ区转移率极低；跳跃性转移极为少见。淋巴结包膜外侵比例与最大径正相关。T分期和各区淋巴结转移之间无相关性。
[Abstract]:Objective: to investigate the imaging features of regional lymph node metastasis in nasopharyngeal carcinoma (NPC) and to provide evidence for clinical staging, treatment and prognosis. Materials and methods: from January 2009 to June 2011, 1298 patients with nasopharyngeal carcinoma (NPC) who had been examined by MRI in Department of Radiology, first affiliated Hospital of Guangxi Medical University, were collected from January 2009 to June 2011. The location of cervical lymph nodes was determined according to RTOG2006 imaging criteria, and the distribution characteristics of lymph nodes in each region and the status of jumping metastasis were analyzed. At the same time, the difference of lymph node metastasis rate and different diameter of lymph nodes in different T stage was analyzed. Results: there were 1067 cases (82.2%) with metastatic lymph nodes in this group. The distribution was as follows: 20 cases (1.5%) in area 鈪，

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