甲状腺癌颈部转移性淋巴结超声影像特征分析

摘要] 目的 观察甲状腺癌颈部转移性淋巴结超声特点,探讨超声在甲状腺癌颈部转移性淋巴结诊断中的 应用价值。方法 分析 169 例患者 503 枚甲状腺癌颈部转移淋巴结的超声影像特征。结果 甲状腺癌颈部转移性 淋巴结呈中等或偏低回声,淋巴结血流以周边型和无血流型血供为主,不同病理类型甲状腺癌转移性淋巴结长径 ( L )、短径( S )、 L / S 及阻力指数( resistanceindex , RI )差异无统计学意义( P >0.05 ), L / S 比值均数 <1.8 ,血流 RI 均 数 >0.6 。微钙化(钙化灶 <2mm )是甲状腺乳头状癌转移性淋巴结的特征性表现。结论 甲状腺癌转移性淋巴结 有典型的超声影像特点,掌握其特征性表现有助于提高检出率,有重要的临床实用价值。

Ultrasonic feature analysis of cervical metastatic lymph nodes in thyroid carcinoma

Abstract］ObjectiveTo observe the ultrasonographic features of cervical lymph node metastasis in thyroid carcinoma, and to investigate the value of ultrasonography in the diagnosis of cervical lymph node metastasis of thyroid carcinoma. MethodsUltrasound imaging features of 503 cases of cervical metastatic lymph nodes in 169 patients with thyroid carcinoma were analyzed. ResultsMetastatic lymph nodes in the neck of thyroid carcinoma show medium or low echo,lymph node blood mainly showed peripheral blood supply type and no blood supply type. There was no significant difference in metastatic lymph node length(L), short diameter(S), L/S and resistance index(RI) in different pathological types of thyroid carcinoma（P＞005）. L/S ratio mean value was less than 1.8 and blood flow RI mean number was more than 06. Micro calcification(calcification foci＜2 mm ) was the characteristic manifestation of metastatic lymph nodes in papillary carcinoma of the thyroid gland. ConclusionThe metastatic lymph nodes of thyroid carcinoma have typical characteristics of ultrasound image.To master the characteristics of the manifestation is helpful to improve the detection rate, wchich possess important clinical practical value.