摘要
目的探讨原发于峡部甲状腺乳头状癌(PTC)超声声像图特征。方法回顾性分析41例病理证实为原发于峡部PTC患者的超声表现,并随机选取同时期原发于侧叶PTC患者90例进行对照,比较两组患者超声表现差异,所有患者均在行超声检查后2周内行甲状腺全切及颈部中央区淋巴结清扫术。结果峡部与侧叶PTC患者在年龄、性别及病灶大小方面相匹配,无明显差别;两组病例在肿块边界、内部回声、微钙化等超声特征之间差异均无统计学意义(P>0.05);与原发于侧叶PTC相比,峡部PTC常易表现为甲状腺被膜侵犯、纵横比<1、颈部中央区淋巴结转移,两组差别均有统计学意义(P<0.05)。结论与侧叶PTC相比,峡部PTC更易于发生被膜侵犯及颈部中央区淋巴结转移,对于即使边界较清、纵横比<1的甲状腺峡部结节仍须仔细观察排除恶性结节的可能,提高诊断的准确率。
Objective The aim of the present study was to analyze the sonographic features of papillary thyroid carcinoma （PTC） originating in the thyroid isthmus. Methods From January 2012 to December 2014, 41 patients with pathologically confirmed PTC originated in the thyroid isthmus were retrospectively analyzed. As a control group, 90 patients diagnosed as PTC originating in thyroid lobes during the same period were randomly matched to the study patients for age, sex, and tumor size. All patients had undergone total thyroidectomy with bilateral central lymph node dissection. The Chi-square test and rank sum test were used to compare the different ultrasound characteristics between the two groups. Results Compared with PTC located in thyroid lobes, the tumors originating in the isthmus more frequently had a wider-than-tall shape and higher rates of capsular invasions, cervical central lymph nodes metastasis. There were no significant differences among characteristics of the primary tumor echo pattern, mlcrocalcification and boundary between PTC located in isthmus and lobes. Conclusion PTCs originating in the isthmus were more likely to have capsular invasions and cervical central lymph nodes metastasis than those originating in the lobes. Despite the tumors locating in thyroid isthmus have a relatively circumscribed margin with a wider-than-tall shape, more careful ultrasound evaluation should be performed to exclude the possibility of malignant masses.
出处
《中华临床医师杂志（电子版）》
CAS
2015年第20期41-43,共3页
Chinese Journal of Clinicians(Electronic Edition)
关键词
超声检查
甲状腺
癌
乳头状
淋巴结转移
Ultrasonography
Thyroid gland
Carcinoma, papillary
Lymphatic metastasis
