The rates of histopathological lesions in antrum were as follow: CG: 100%, active gastritis: 67.3%, atrophic gastritis: 81.7%, HP infection: 67%, IM: 37.7% and dysplasia: 16%; all of them are higher than in body (84.3%, 67.3%, 6.7%, 58.7%, 0% and 0, respectively).