Helicobacter pylori-associated gastritis and gastric cancer in Nigeria.
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2003-11-20
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Abstract
BACKGROUND: The etiology of gastric cancer has not been clearly delineated. There is some evidence of an association of gastric cancer with Helicobacter pylori-induced chronic gastritis, atrophic gastritis and intestinal metaplasia. Previous studies report a high rate of H. pylori infection and chronic gastritis among Nigerians.
METHODS: We retrospectively reviewed 84 tissue specimens with gastric cancer seen in our department over an 18-year period for for the presence of H. pylori infection, chronic gastritis, atrophic gastritis, and intestinal metaplasia in the adjacent non-cancerous gastric mucosa.
RESULTS: H. pylori infection was detected in 15 (17.9%) of 84 specimens. Moderate to severe gastritis was found in non-cancerous areas in 77 (91.7%) specimens, and was equally frequent in patients with 'intestinal' and 'diffuse' types of cancer. Atrophic gastritis and intestinal metaplasia were observed in 22 (26.2%) and 35 (41.7%) specimens, respectively, and were more common in 'intestinal' type of gastric cancer.
CONCLUSION: Chronic gastritis was seen in the adjacent non-cancerous mucosa in most specimens with gastric cancer. However, its severity did not correlate with the histological subtype of gastric cancer.
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Oluwasola AO, Ogunbiyi JO. Helicobacter pylori-associated gastritis and gastric cancer in Nigeria. Indian Journal of Gastroenterology. 2003 Nov-Dec; 22(6): 212-4