Abstract
According to our criteria (see Figure 1-6), 214 cases undergone polypectomy were reviewed to determine characteristics for permitting safe and reliable polypectomy. These results suggest that the indication of polypectomy as a total biopsy for polypoid lesion can be decided by morphological characteristics (irrespective of epithelial one or non-epitherial one). In terms of the Yamada's classifications, the polypectomy is indicated for Type II to Type IV. In polypoid lesions (submucosal tumor such as Figure 1 & Figure 6), in which there is no indications of the polypectomy, histological diagnosis was made by the use of high frequency treatment. The results obtained in Type I (Figure 1) were extremely poor, indicating difference in histological diagnostic possibility depending upon macroscopical appearance. It was also shown that heterotopic gastric gland and eosinophillic granuloma were commonly seen in the submucosal tumor polypectomized.
