title: [Investigation of relationship between primary gastric malignant lymphoma and Helicobacter pylori infection].
abstract: In order to investigate the relationship between primary gastric malignant lymphoma (PGML) and helicobacter pylori (Hp) infection, the gastric mucosa of 39 cases of PGML and 22 cases of lymphocytic gastritis, 32 cases of Hp unrelated diseases was collected in this case-control study. Hp infection was confirmed by modified Giemsa stain; PGML was classified by Isaacson's classification.
  
  
  RESULTS
  The Hp detecting rate of PGML was 87.18%, which was significantly higher than that of control groups that was 63.64%, 53.13% respectively (P < 0.005). Mucosa-associated lymphoid tissue (MALT) type was accounted for 92.31% of PGML cases with Hp detecting rate 86.11%. In surrounding chronic active gastritis and lymphoid-follicles Hp were detected in 84.62%, 56.41% cases respectively.
  
  
  CONCLUSIONS
  histology shows a good relationship between B cell gastric MALT lymphoma and Hp infection.
authors.affiliation: Department of Gastroenterology, First Affiliated Hospital, West China University of Medical Sciences, Chengdu.
authors.forename: Z
authors.initials: Z
authors.lastname: Yi
authors.forename: Q
authors.initials: Q
authors.lastname: Ouyang
authors.forename: G
authors.initials: G
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D016481:Helicobacter Infections / Q000382:microbiology*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D016393:Lymphoma, B-Cell / Q000382:microbiology*; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000382:microbiology*