Abstract
During the-15-year period from April, 1977 to March, 1992, 84 patients with esophageal cancer were treated. Thirteen patients (15.5%) including 11 males and two females were superficial esophageal cancer. The mean age was 65.1 years, with a range of 54 to 75 years. The location of lesions was the middle intra-thoracic esophagus in 10 patients, the lower intra-thoracic esophagus in two, and the abdominal esophagus in one. The invasion to the intraepithelium (ep) was observed in four patients, to the muscularis mucosa (mm) in two, and to thesubmucosa (sm) in seven. No lymphnode metastasis was seen in ep and mm cancer with good prognosis. The rate of lymphnode metastasis was increased in sm cancer, suggesting that sm cancer shouldbe treated with extended surgical pro-cedures according as the treatment for advanced cancer.
