基于不同肿瘤位置分型的甲状腺乳头状癌Ⅱ、Ⅳ区淋巴结转移危险因素分析
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江苏省原子医学研究所江苏省江原医院外科

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江苏省医学重点学科(实验室)基金(ZDXYS202211)


Risk Factors for Level II and Level IV Lymph Node Metastasis in Papillary Thyroid Carcinoma Based on Different Tumor Location ClassificationsFENG Qinchao, ZHU Guohua, WANG Guorui*
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Department of Surgery, Jiangsu Institute of Nuclear Medicine Jiangyuan Hospital of Jiangsu Province

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    摘要:

    目的:探讨甲状腺乳头状癌(papillary thyroid carcinoma,PTC)患者Ⅱ区及Ⅳ区淋巴结转移的危险因素,并比较不同肿瘤位置分型方法在预测侧颈区不同分区淋巴结转移中的价值,为术前淋巴结转移评估及手术清扫范围的制定提供参考依据。方法:回顾性分析2022年1月1日至2025年5月1日期间于江苏省江原医院接受甲状腺手术的PTC患者临床及病理资料。收集患者年龄、性别、BMI、肿瘤大小、是否侵犯包膜、是否多灶、是否合并桥本甲状腺炎及Ⅵ区淋巴结转移情况等临床病理特征。肿瘤位置基于术前颈部增强CT影像,分别采用传统纵轴三等分法及以甲状腺中静脉汇入点为分界的分型方法进行分类。通过单因素分析筛选Ⅱ区及Ⅳ区淋巴结转移的相关因素,并采用受试者工作特征(ROC)曲线比较不同肿瘤位置分型方法对Ⅱ区及Ⅳ区淋巴结转移的预测效能。结果:共纳入152例PTC患者,其中Ⅱ区淋巴结转移59例(38.82%),Ⅳ区淋巴结转移113例(73.34%)。单因素分析结果显示,肿瘤位置与Ⅱ区及Ⅳ区淋巴结转移均存在显著相关性(P<0.05),其中以中静脉为分界的肿瘤位置分型与Ⅱ区、Ⅳ区淋巴结转移的相关性更为显著。ROC曲线分析显示,中静脉分界法预测Ⅱ区淋巴结转移的AUC为0.749,高于传统分区方法的0.608;预测Ⅳ区淋巴结转移的AUC分别为0.687和0.650。提示以中静脉为解剖标志的肿瘤位置分型在预测Ⅱ区及Ⅳ区淋巴结转移方面具有更好的诊断效能,尤其在Ⅱ区淋巴结转移风险评估中优势更为明显。结论:PTC患者Ⅱ区及Ⅳ区淋巴结转移与肿瘤位置密切相关。相比传统纵轴三等分法,以甲状腺中静脉为解剖标志的肿瘤位置分型更符合解剖学及淋巴回流特点,在术前预测Ⅱ区及Ⅳ区淋巴结转移方面具有一定优势。该分型方法可作为术前影像学评估的有益补充,有助于提高侧颈区淋巴结转移风险的识别能力,为侧颈区淋巴结清扫范围的个体化制定提供参考。

    Abstract:

    Objective: To identify risk factors for level II and level IV lymph node metastasis in papillary thyroid carcinoma (PTC) and to evaluate the predictive value of different tumor location classification methods. Methods: A retrospective analysis was performed on PTC patients who underwent thyroid surgery between January 2022 and May 2025. Clinical and pathological variables were collected. Tumor location was classified using the conventional longitudinal trisection method and a middle thyroid vein–based method on preoperative contrast-enhanced CT images. Univariate analysis and receiver operating characteristic (ROC) curve analysis were used. Results: Among 152 patients, 59 (38.82%) had level II lymph node metastasis and 113 (73.34%) had level IV lymph node metastasis. Tumor location was significantly associated with metastasis in both levels (P < 0.05). The middle thyroid vein–based classification showed better predictive performance for level II metastasis (AUC = 0.749) than the conventional method (AUC = 0.608), and slightly higher accuracy for level IV metastasis (AUC = 0.687 vs. 0.650). Conclusion: Tumor location is closely associated with level II and level IV lymph node metastasis in PTC. The middle thyroid vein–based classification may improve preoperative risk assessment of lateral cervical lymph node metastasis.

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  • 收稿日期:2026-03-12
  • 最后修改日期:2026-05-11
  • 录用日期:2026-07-09
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