Abstract
Pyloric expansion of atrpohic gastritis has been proved by endoscopic biopsy and resected specimens. Carciac expansion of atrophic gastritis has been studied by an endoscopic congo red method. In this report, the biopsy is perf omed according to ring wise way around esophago gastric junction (EGJ) and stepwise way from the upper portion to the antrum along the lesser curvature. The ring biopsy is carried out from 2 concentric circles, one of which is close to EGJ as a inner circle and the other is 3 cm apart from the inner circle as a outercircle. The biopsy speciments are taken from the lesser, the greater, the anterior, and the posterior portion of each circles, and so the total biopsy specimens are 8 different points. According to the histological analysis of the biopsy specimens of each circle 3types of atrophic pattern are classified, type I shows normal mucosa at the both circles, type II showds atrophy only at the inner circle, type III shows atrophy at the both circles. The type I is seen in 31%, type II in 49% and type III in 20%, so that, atrophic change of the inner circlei is revealed in 69% of all cases. A frecuency of atrophic gastritis is increased according with the age of the patients. Atrophic gastritis in the upper portion of stomach was remarkable at the lesser curvature, and incidence is decreased at the posterior wall, anterior wall, and the greater curvature in order. From these results a bilateral expansion of the atrophic gastritis is shown in the most of the patients but an unilateral expansion is a part of patients.
