title: Gastric adenocarcinoma in a patient re-infected with H. pylori after regression of MALT lymphoma with successful anti-H. pylori therapy and gastric resection: a case report.
abstract: BACKGROUND
  Helicobacter pylori (H. pylori) has been etiologically linked with primary gastric lymphoma (PGL) and gastric carcinoma (GC). There are a few reports of occurrence of both diseases in the same patients with H. pylori infection.
  
  
  METHODS
  We report a patient with PGL in whom the tumor regressed after surgical resection combined with eradication of H. pylori infection. However, he developed GC on follow up; this was temporally associated with recrudescence/re-infection of H. pylori. This is perhaps first report of such occurrence.
  
  
  CONCLUSIONS
  Possible cause and effect relationship between H. pylori infection and both PGL and GC is discussed. This case also documents a unique problem in management of PGL in tropical countries where re-infection with H. pylori is supposed to be high.
authors.affiliation: Department of Gastroenterology, Seth Sukhlal Karnani Memorial Hospital & Institute of Postgraduate Medical Education and Research, 244, AJC Bose Road, Kolkata 700020, India. ghoshal@sgpgi.ac.in
authors.forename: Uday C
authors.initials: UC
authors.lastname: Ghoshal
authors.forename: Debashish
authors.initials: D
authors.lastname: Guha
authors.forename: Santu
authors.initials: S
authors.lastname: Bandyopadhyay
authors.forename: Chiranjib
authors.initials: C
authors.lastname: Pal
authors.forename: Srikanta
authors.initials: S
authors.lastname: Chakraborty
authors.forename: Ujjala
authors.initials: U
authors.lastname: Ghoshal
authors.forename: Tamal K
authors.initials: TK
authors.lastname: Ghosh
authors.forename: Bhaskar B
authors.initials: BB
authors.lastname: Pal
authors.forename: Prabir K
authors.initials: PK
authors.lastname: Banerjee
mesh_terms: D000230:Adenocarcinoma / Q000209:etiology* / Q000473:pathology; D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D003131:Combined Modality Therapy; D005743:Gastrectomy; D016481:Helicobacter Infections / Q000150:complications* / Q000188:drug therapy; D016480:Helicobacter pylori; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000209:etiology* / Q000473:pathology / Q000628:therapy; D008297:Male; D012008:Recurrence; D013270:Stomach / Q000473:pathology; D013274:Stomach Neoplasms / Q000209:etiology* / Q000473:pathology / Q000628:therapy
chemical_list: D000900:Anti-Bacterial Agents