食管癌病变部位与上、中、下纵隔淋巴结转移度无显著相关（P<0 .0 1） ；

The site of thoracic esophageal carcinoma was correlated to upper, middle, and lower mediastinal LMR(P<0.01).

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多项研究提示，EBUS - TBNA在判断恶性肿瘤纵隔淋巴结转移上，显示出良好的灵敏度及特异度，优于目前部分常规检查。

A lot of studies showed that EBUS-TBNA had good sensitivity and specificity in diagnosing mediastinal lymph nodes metastasis of malignant tumors, which was even superior to other common examination.

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