en Microbiology and Anatomy Microbiology and Anatomy Original Research Original Research We studied the relationship between gastroduodenal inflammation and the presence of Campylobaeter pylori from biopsy specimens of the gastric mucosa in 91 patients with gastritis with or without ulcers and 9 controls, healthy or suffering from other diseases. 68 of the patients were positive for the presence of C. pylori in their gastric mucosa. C. pylori was confirmed bacteriohistologically in 22 out of31 cases with chronic gastritis, six of nine cases with gastric ulcer, 14 of 18 cases with duodenitis and 26 of 28 cases with duodenal ulcer. The control group and five patients with gastric cancer, all were negative for the presence of C.pylori. Our results are in agreement with the published data confirming the close association between chronic gastroduodenal inflammation and Campylobaeter pylori. 19 22 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-717&slc_lang=en&sid=1 P ADlBFAR 20031947532846006367 20031947532846006367 Yes From the Department of Microbiology, Internal Medicine, and Pathology, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran. A MIRSALEHIAN 20031947532846006368 20031947532846006368 No H GHOFRANI 20031947532846006369 20031947532846006369 No M ALAVI 20031947532846006370 20031947532846006370 No A RAGABI 20031947532846006371 20031947532846006371 No