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目的探讨超声内镜在食管癌和贲门癌的临床诊断上的应用价值。方法自1996年3月至1997年8月，应用超声内镜检查33例食管癌和28例贲门癌，了解癌肿的影像特征，浸润深度及癌旁淋巴结情况。结果超声内镜显示肿瘤影像特征为不规则的低回声肿块伴部分或全部管壁结构的破坏；对肿瘤浸润深度诊断总符合率：食管癌为81．8％，贲门癌为75％：对癌旁淋巴结的发现率：食管癌为88．9％，贲门癌为92％：超声内镜发现癌旁肿大淋巴结癌转移率：食管癌为75％，贲门癌为91.39％。结论超声内镜对食管癌、贲门癌术前临床治疗方法的选择、手术方式的确定和预后的评估具有重要的参考价值。
Objective To investigate the value of endoscopic ultrasonography in the diagnosis of esophageal and cardiac cancers. Methods From March 1996 to August 1997, 33 cases of esophageal cancer and 28 cases of cardiac cancer were examined by endoscopic ultrasonography to understand the imaging features, depth of invasion, and paraneoplastic lymph nodes. Results Ultrasound endoscopy revealed irregular hypoechoic masses with partial or complete disruption of vessel wall structure. The overall coincidence rate of diagnosis of tumor invasion was 81.8% for esophageal cancer and 75% for cardia cancer: The discovery rate of paralyzed lymph nodes was 88.9% for esophageal cancer and 92% for cardiac cancer. The metastatic rate of lymph node metastasis was found by endoscopic ultrasonography: 75% for esophageal cancer and 91.39% for cardiac cancer. Conclusion Endoscopic ultrasonography has important reference value for the choice of preoperative clinical treatment methods for esophageal and cardiac cancer, the determination of surgical methods and the evaluation of prognosis.