Methods:The features of two different gas-barium double contrast esophagus examinations of 40 cases with nonage upper esophageal carcinoma diagnosed by pathology were analyzed.
方法：对病理证实的40例早期上段食道癌，使用两种不同的气钡双重对比剂食道造影方法进行观察。
Objective:To evaluate toluidine blue (TB) and Lugol's solution (LS) double staining in detecting early, superficial cancer of esophagus.
目的：为评价内镜下甲体胺兰和卢戈氏液双重染色在食管早期癌和浅表癌诊断中的意义。
Objective:To evaluate toluidine blue (TB) and Lugol's solution (LS) double staining in detecting early, superficial cancer of esophagus.
目的：为评价内镜下甲体胺兰和卢戈氏液双重染色在食管早期癌和浅表癌诊断中的意义。
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