Abstract
Type I early gastric cancers were treated in 68 cases (76 lesions) at Fukui Prefectural Hospital from 1963 to 1985. In this histological study, hyperplastic polyps associated with carcinoma were found in 25 lesions of 24 cases, and 33 percent of type I early gastric cancers had, therefore, associated gastric hyperplastic polyp. Sixteen cases of these were gastrectomy cases and 8 cases were endoscopical polypectomy cases. A male and female ratio was 1;1, the average age was 66.5 year and the average size of 25 lesions was 2.6 cm. In 8 cases of these, the size of lesion was less than 2.0 cm and in 2 cases, it was less than 1.0 cm. The space occupying ratio of carcinoma tissue in small lesions was small, and it was large in large lesions. Endoscopical examination of these lesions showed surface irregularity, erosion, white coat and bleeding, etc. Change in size and surface irregularity was noted at the time of recognizing malignant transformation of gastric hyperplastic polyp which we could follow up on endoscopical examination. From 1976 to 1985, 1508 cases were diagnosed histologically as gastric hyperplastic polyp at this hospital. Of these cases, 16 were associated with carcinoma.
