甲状腺乳头状癌颈部淋巴结转移特点及清扫策略

孙荣华; 潘先均; 苏新良

doi:10.3969/j.issn.1007-3969.2016.01.013

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甲状腺乳头状癌颈部淋巴结转移特点及清扫策略

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- 甲状腺乳头状癌颈部淋巴结转移特点及清扫策略
- Characteristics related to lymph node metastasis and strategy of lymph node dissection in papillary thyroid carcinoma
- 中国癌症杂志 2016年26卷第1期页码：80-87
- 作者机构：
  
  1. 重庆市涪陵中心医院普外科,重庆,408000
  2. 重庆市肿瘤医院乳腺外科,重庆,400030
  3. 重庆医科大学附属第一医院内分泌乳腺外科,重庆,400016
- 作者简介：
- 基金信息：
  
  重庆市卫生局科研计划项目(2010-2-017)。
- DOI：10.3969/j.issn.1007-3969.2016.01.013
  中图分类号：
- 网络出版：2016-02-26，
  
  纸质出版：2016-02-26
- 稿件说明：
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孙荣华,潘先均,苏新良,等. 甲状腺乳头状癌颈部淋巴结转移特点及清扫策略[J]. 中国癌症杂志, 2016, 26(1): 80-87.

孙荣华, 潘先均, 苏新良. Characteristics related to lymph node metastasis and strategy of lymph node dissection in papillary thyroid carcinoma[J]. China Oncology, 2016, 26(1): 80-87.
孙荣华,潘先均,苏新良,等. 甲状腺乳头状癌颈部淋巴结转移特点及清扫策略[J]. 中国癌症杂志, 2016, 26(1): 80-87. DOI： 10.3969/j.issn.1007-3969.2016.01.013.

孙荣华, 潘先均, 苏新良. Characteristics related to lymph node metastasis and strategy of lymph node dissection in papillary thyroid carcinoma[J]. China Oncology, 2016, 26(1): 80-87. DOI： 10.3969/j.issn.1007-3969.2016.01.013.

摘要

背景与目的：目前，在甲状腺癌颈淋巴结清扫方面存有较大分歧。该研究总结甲状腺乳头状癌淋巴结转移的特点，为择区淋巴结清扫提供理论依据。方法：回顾性分析2006年7月—2014年8月收治的462例甲状腺乳头状癌患者病历资料，分析其淋巴结转移规律及其影响因素，评判cN

标准的准确性。结果：全组患者均行患侧中央区(Ⅵ区)淋巴结清扫，320例行侧颈区淋巴结清扫术(Ⅱ～Ⅴ区)或择区淋巴结清扫(Ⅱ～Ⅳ区中的部分或全部)，90例行对侧中央区淋巴结活检。73.2%(338/462)符合cN

标准，病理证实其中有184例淋巴结转移，cN

标准误诊率达60.9%。颈部淋巴结总转移率为65.4%(302/462)，侧颈区淋巴结转移率为42.6%(197/462)，“跳跃转移”率为13.1%(42/320)，对侧中央区淋巴结转移率为50%(45/90)。男性、肿瘤累及腺叶上1/3、肿瘤T

或T

、多中心病灶是淋巴结转移的危险因素。肿瘤累及腺叶上1/3是喉前淋巴结转移及“跳跃转移”的危险因素。喉前淋巴结转移及中央区淋巴结2个以上转移者侧颈区淋巴结转移率显著增加(分别为85.7%和83.3%，P＜0.05)。结论：现行cN

标准不能作为确定淋巴结清扫范围的依据；甲状腺乳头状癌易发生淋巴结转移，其中Ⅵ区淋巴结转移率最高，依次为Ⅲ区、Ⅱ区、Ⅳ区、Ⅴ区；初次手术应常规清扫患侧中央区淋巴结，建议将Ⅵ区淋巴结送冰冻病理；当喉前淋巴结有转移或Ⅵ区2个以上淋巴结转移时，或肿瘤累及腺叶上1/3者，有必要行侧颈区(或择区)淋巴结清扫；对侧中央区淋巴结转移率较高，需予以重视；中央区淋巴结再分亚区具有重要意义，应深入研究。

Abstract

Background and purpose: For treatment of papillary thyroid carcinoma (PTC)

there is substantial divergence of opinion in neck dissection currently. In this study

we aimed to provide theoretical basis for selective neck dissection through summarizing the characteristics of cervical lymph node metastasis (LNM) in PTC. Methods: From Jul. 2006 to Aug. 2014

462 patients with PTC at our hospital were retrospectively analyzed. We analy

zed the characteristics and predictive factors of cervical LNM and evaluated the accuracy of cN

standard. Results: All patients received ipsilateral central cervical lymph node dissection (Level Ⅵ). 320 patients underwent lateral cervical lymph node dissection (Level Ⅱ-Ⅴ) or elective lymph node dissection (some or all of Level Ⅱ-Ⅳ). 90 patients received contralateral central cervical lymph node biopsy. 73.2% (338/462) were cN0 patients

but among those 184 patients were pathologically confirmed with LNM. The misdiagnosis rate of cN

standards was 60.9%. The cervical LNM rate was 65.4% (302/462) in total. The lateral compartment LNM rate was 42.6% (197/462). 13.1% (42/320) patients had skip lateral cervical LNM leaping central compartment

whereas 50% (45/90) with contralateral level Ⅵ metastasis. Male

tumor involving upper 1/3 gland

tumors T

or T

and multicentricity were all predictive factors of LNM. Patients with tumor involving upper 1/3 gland prone to prelaryngeal lymph node (PLN) metastasis and “skip metastasis”. Lateral compartment LNM increased significantly when PLN(+) and ≥2 central lymph nodes metastasis (85.7% and 83.3%

respectively

P0.05). Conclusion: Existing cN

standard is not a suitable criteria for determining the margin of lymph node dissection. PTC is prone to lymph node metastasis

and level Ⅵ is most likely to be involved

then Ⅲ

Ⅱ

Ⅳ

Ⅴ. Ipsilateral central lymph nodes should be routinely dissected and intraoperative frozen examination is suggested in initial surgery. If patients had PLN metastasis

or ≥2 central lymph nodes metastasis

or tumor involving upper 1/3 gland

lateral cervical lymph node dissection (or elective lymph node dissection) is necessary. Attention should be paid to contralateral level Ⅵ for it has high metastasis rate. Subdivision of central compartment is of great significance and needs thorough research.

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