Lightdale C J, Botet J F
Department of Medicine, Gastroenterology Service, Memorial Sloan-Kettering Cancer Center, New York, New York 10021.
Gastrointest Endosc. 1990 Mar-Apr;36(2 Suppl):S11-6. doi: 10.1016/s0016-5107(90)71009-7.
Survival after surgical resection of esophageal carcinoma is highly related to stage. The latest staging classifications (UICC/AJCC, 1987/1988) use the TNM system. Accumulating data show endoscopic ultrasonography (EUS) to be consistently more accurate than CT in pre-operative staging of depth of tumor invasion. Detailed images of the esophageal wall obtained by EUS allow accurate staging even in early cancer where CT is ineffective. EUS is also more accurate than CT in staging regional lymph nodes, but is less accurate than CT in staging distant metastases due to tumor stenosis in some patients and limited depth of field. EUS has also been shown to be accurate in diagnosing post-operative recurrence of cancer in the area of the surgical anastomosis. EUS represents a major advance in the clinical staging of esophageal cancer.
食管癌手术切除后的生存率与分期高度相关。最新的分期分类（UICC/AJCC，1987/1988）采用TNM系统。越来越多的数据表明，在术前肿瘤浸润深度分期方面，内镜超声检查（EUS）始终比CT更准确。EUS获得的食管壁详细图像即使在CT无效的早期癌症中也能实现准确分期。在区域淋巴结分期方面，EUS也比CT更准确，但由于一些患者存在肿瘤狭窄且视野深度有限，在远处转移分期方面不如CT准确。EUS在诊断手术吻合部位的癌症术后复发方面也已被证明是准确的。EUS是食管癌临床分期的一项重大进展。
