摘要
目的探讨食管癌淋巴结转移的分布特征(参照ATS淋巴结分组法)及其16层螺旋CT表现。方法对95例食管癌患者进行16层螺旋CT容积扫描并行多平面重建(MPR),所有病例均经手术病理或影像标准诊断有淋巴结转移并按美国胸科协会(ATS)修订的食管癌淋巴结分组标准进行分组。设定淋巴结的短径≥1 cm为淋巴结转移阳性标准,统计各组阳性淋巴结的出现率,观察淋巴结转移的位置,淋巴结的形态、大小、数目及强化情况。结果95例食管癌中,共计286个部位观察到淋巴结转移,食管癌的淋巴结转移以右下气管旁组(43.2%,41例),主肺动脉窗组(35.8%,34例)、隆突下组(28.4%,27例)为最多。膈上组(1.1%,1例)及脾动脉组(2.1%,2例)最少。结论食管癌淋巴结转移主要分布在右下气管组、主肺动脉窗组及隆突下组。16层螺旋CT检查可以较为准确地显示食管癌淋巴结的转移情况。
Objective To explore the 16-slice spiral CT feature and distribution characteristics of lymph node metastases in patients with esophageal carcinoma.Methods Spiral CT volume scan and multiplanar reconstruction(MPR) were performed in 95 patients with esophageal carcinoma.The maximum short axis diameter of lymph node≥10mm was regarded as the cases of esophageal carcinoma with lymph node metastases.According to American Thoracic Society(ATS) nodal classification,lymph node were classified as 19 groups.CT imaging was evaluated with special attention to the location,shape,size mumber and enhancement.Results The lymph node metastases of three field were mainly observed around the right inferior paratracheal nodes(43.2%),the aorticopulmonary window nodes(35.8%),and the inferior tracheal bifurcation(28.4%).Inversely,it was least observed around the posterior crural nodes(1.1%),and the splenic nodes(2.1%).Conclusion Lymph node metastases of thoracic esophageal carcinoma are mainly located around the right inferior paratracheal nodes,the aorticopulmonary window nodes and the inferior tracheal bifurcation.16-slice spiral CT imaging can clearly reveal the location of lymphadenopathy in patients with esophageal carcinoma.
出处
《海南医学》
CAS
2009年第S6期203-206,共4页
Hainan Medical Journal
关键词
食管癌
多层螺旋CT
淋巴结
转移
Esophageal carcinoma
Multi-slice spiral CT
Lymph node
Metastases
