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Japanese Journal of Clinical Oncology 33:396-398 (2003)
© 2003 Foundation for Promotion of Cancer Research

Morphologic Criteria Using Biopsy Specimens to Define the Risk of Gastric Cancer in Patients with Helicobacter pylori Infection

Shinsaku Fukuda1, Masanori Tanaka2, Tadashi Shimoyama1, Manabu Sawaya1, Shigeyuki Nakaji3 and Akihiro Munakata1,+

1 First Department of Internal Medicine, 2 Department of Pathology and 3 Department of Hygiene, Hirosaki University School of Medicine, Hirosaki, Japan

Although Helicobacter pylori (H. pylori) infection is associated with gastric cancer most patients infected with H. pylori do not develop gastric cancer. Gastric biopsy specimens were taken from 49 patients with early intestinal-type gastric cancer and from 49 age- and sex-matched control subjects. Histological features of gastritis were graded according to the updated Sydney System. Mononuclear cell infiltration of the corpus, and intestinal metaplasia of the angle increased the risk of developing gastric cancer. Probability of gastric cancer (PCA) was calculated using these two parameters. The specificities of 70 <PCA for gastric cancer patients, and PCA <30 for non-cancer subjects were 94 and 95%, respectively. PCA <20 was observed only in control subjects. Calculation of PCA, which requires only two biopsy specimens, may be useful to define the patients at high or low risk of intestinal-type gastric cancer among patients infected with H. pylori.

+ For all reprints and correspondence: Tadashi Shimoyama, First Department of Internal Medicine, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan. Email: tsimo-hki{at}umin.ac.jp


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