高频超声对甲状腺乳头状癌颈部淋巴结转移的预测价值

Predictive Value of High-frequency Ultrasound for Cervical Lymph Node Metastasis in Papillary Thyroid Carcinoma.

目的探讨甲状腺乳头状癌(papillary thyroid carcinoma,PTC)颈部淋巴结转移的危险因素,评估独立危险因素对转移淋巴结的预测效能。方法收集279例PTC患者的临床及超声声像图资料,以术后病理为依据,根据患者是否存在颈部淋巴结转移分为两组,分析两组患者的相关特征,探寻PTC颈部淋巴结转移的危险因素,通过受试者工作特征(receiver operating characteristic,ROC)曲线比较独立危险因素对颈部转移淋巴结的预测效能。结果两组患者的年龄、性别以及癌结节最大径、边界、形态、微钙化、距被膜的距离等特征是PTC颈部淋巴结转移的危险因素(P均<0.05);男性、癌结节最大径≥10mm、微钙化、距被膜的距离≤2mm是PTC颈部淋巴结转移的独立危险因素(P均<0.05);4种独立危险因素联合预测PTC颈部淋巴结转移效能最高,其AUC为0.785(95%CI:0.721~0.849,P<0.05)。结论男性、癌结节最大径≥10mm、微钙化、距被膜的距离≤2mm是PTC颈部淋巴结转移的独立危险因素,4种独立危险因素联合可辅助评估PTC颈部淋巴结转移风险,改善患者预后。

Objective To investigate the risk factors and independent risk factors associated with papillary thyroid carcinoma(PTC)cervical lymph node metastasis,and to assess the predictive efficacy of independent risk factors on metastatic lymph nodes.Methods Clinical and ultrasonographic data of 279 patients with PTC were collected,and the patients were divided into two groups according to the presence of cervical lymph node metastasis based on postoperative pathology,and the relevant characteristics of the two groups were analyzed to explore the risk factors and independent risk factors associated with cervical lymph node metastasis in PTC,and the predictive efficacy of independent risk factors on cervical metastatic lymph nodes was compared by receiver operating characteristic(ROC)curves.Results Age,gender and the maximum diameter,border,shape,microcalcifications,and distance from the thyroid capsule of cancer nodes were risk factors for cervical lymph node metastasis in both groups(P<0.05);male,maximum diameter of cancer nodes≥10mm,microcalcifications,and distance from the thyroid capsule≤2mm were independent risk factors for cervical lymph node metastasis in PTC(P<0.05);the AUC of the combination of four independent risk factors was 0.785(95%CI:0.721-0.849,P<0.05),with the highest efficacy in predicting cervical lymph node metastasis.Conclusion Male,maximum diameter of cancer nodes≥10mm,microcalcifications,and distance from the thyroid capsule≤2mm were independent risk factors for cervical lymph node metastasis of PTC,and the combination of four independent risk factors could assist in assessing the risk of cervical lymph node metastasis of PTC and improve patient prognosis.