Analysis of Endoscopic Mucosal Resection for Early Esophageal Cancer

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  • 食道粘膜癌に対する内視鏡的粘膜切除の検討

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From January 1991 to February 1995, endoscopic mucosal resection (EMR) for early esophageal cancer was carried out in 40 patients, 46 lesions in National Cancer Center Hospital. The age was 46-81, and the average was 63.8. Of the 40 cases, 35 were male and 5 female. The locations of the lesions were as follows : 32 were found in Im area, following 9 in Ei area. Histologically, all lesions were squamous cell carcinoma. Macroscopically, 34 lesions were 0-IIc type, following 6 lesions 0-IIa type and 6 lesions 0-IIb type. Thirty-one lesions (67%) were treated with EMR by en-bloc resection. As regards the depth of the cancers, 20 were ep and mm1, 13 were mm2, 5 were mm3, and 2 were sm. In this series 2 cases died of other cancer, but other all cases are free of esophageal cancer up to now.<br> EMR is safe and useful for early esophagus cancer. In patients who have circular early esophagus cancers, we choose endoscopic surgery, because we can enlarge with bouginage the lesion of which post-procedure stricture occurred. Because one relapse of cancer tissue was diagnosed in patient who was judged complete histologically, we need to follow up all patients carefully after treatment. Further studies are needed to enlarge the criteria of EMR for early esophagus cancer.

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