Gastric mucosa in Mongolian and Japanese patients with gastric cancer and Helicobacter pylori infection

Figure 1 Triple-site biopsy. Triple-site biopsy specimens were used for the histologic diagnosis of chronic inflammation, neutrophil activity, glandular atrophy, intestinal metaplasia and Helicobacter pylori in the gastric mucosa.

Figure 2 Analysis of gastric cancer in Mongolian patients.

Figure 3 Distribution of gastric cancer in Mongolian patients.

Figure 4 Histologic distribution of gastric cancer in Mongolian patients. Analysis of the percentages of differentiated adenocarcinoma (papillary adenocarcinoma [pap], well-differentiated type [tub1], and moderately differentiated type [tub2]) and undifferentiated adenocarcinoma (poorly differentiated adenocarcinoma [por] and signet-ring cell carcinoma [sig]).

Figure 5 Prevalence of Helicobacter pylori infection in Mongolian patients according to age.

Figure 6 Corpus/antrum activity score ratio in Helicobacter pylori-positive Mongolian and Japanese patients matched by age, sex, and endoscopic diagnostics. Corpus/antrum (C/A) ratio < 1 indicates antrum-predominant gastritis, whereas ratio > 1 corpus-predominant gastritis.

Figure 7 Gastric cancer cases in the upper region. A: Sixty-seven-year-old-woman with cancer located near the cardia, type 2; B: Eighty-eight-year-old-man with cancer located around the cardia, type 3.