Pathologic Observation of Ralation Between the Carcinoma of Stomach and the Infection of Helicobacter Pylori

By techanique of Polymerase Chain Reaction, we analysed 56 cases of carcinoma of stomach, 60 cases of gastritis and 12 cases of normal gastric tissues. The results showed that: the infection rates of Hp were 41. 07%, 93. 3% and 16. 67%,respectively. The infection rates of carcinomas at the upper of stomach was much lower (9. 52 %)than at the middle and parts (68%, 37. 5%). The infection rates of differentiated carcinomas was 55. 8%, but poorly differentiated carcinomas was 20%.