Abstract
From 1965 the esophagofiberscope, Olympus' EF and Machida's FES, has been deviced. Now, these two instruments have been useful in the dragnosis of the esophageal diseases in the ordinary examination. The function of the esophagofiberscope has been excellent in the next points; the top of the scope being able to bend up wards and downwards to 90° and the findings of the mucosa enlarged to about 10 times so as to be able to find the finest lesions.
17 cases of the early cancer of the esophagus have been reported in Japan. In this paper the statistic studies of these were made from many points. And two cases in my clinic were showed with the X-ray film, the endoscopic features and the specimen.
