title: [Relationship between histologic type and location of gastric adenocarcinoma in the Rebagliati Hospital].
abstract: BACKGROUND
  There is epidemiologic evidence that suggest the relation between the histological type and location of gastric adenocarcinoma. Knowing that there is a predominance of Helicobacter pylori infection in the antral region and this is considered an environmental factor; make us suppose that there is a relation among intestinal type and distal location.
  
  
  OBJECTIVE
  The aim of this study is to investigate the relation among histological type and location of gastric cancer, using the Lauren classification and the Japanese Gastric Cancer Association classification.
  
  
  METHODS
  During the period between January 1st 2007 and December 31th 2010, 460 patients with the proven diagnostic of adenocarcinoma were admitted for surgical treatment at the gastric cancer specialized ward of Rebagliati National Hospital, Lima, Peru.
  
  
  RESULTS
  Female was more frequent in diffuse type (39% vs. 33%; p: 0,153), the mean age among intestinal type is greater than diffuse type (70,7 vs. 62,6 años; p<0,001). There is association among poorly differentiated with upper location (22% vs. 12,7%; p = 0,009), signet cell with middle location (50% vs. 32,5%; p: 0,006), tubular type with distal location (57,6% vs. 42,8%; p: 0,002), intestinal type with distal location (58,3% vs. 44,1%; p: 0,004), and diffuse type with upper location (19,3% vs. 12,5%; p: 0,049).
  
  
  CONCLUSIONS
  Adenocarcinomas histologically differentiated or intestinal type are associated with distal location. Poorly differentiated type and signet ring cell type are associated with upper and middle location respectively.
authors.affiliation: Médico Cirujano, Hospital Rebagliati.
authors.forename: Jhonatan
authors.initials: J
authors.lastname: Quiñones
authors.forename: Michel
authors.initials: M
authors.lastname: Portanova
authors.forename: Alejandro
authors.initials: A
authors.lastname: Yabar
mesh_terms: D000230:Adenocarcinoma / Q000145:classification / Q000453:epidemiology / Q000473:pathology*; D002288:Adenocarcinoma, Mucinous / Q000453:epidemiology / Q000473:pathology; D000231:Adenocarcinoma, Papillary / Q000453:epidemiology / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018279:Carcinoma, Signet Ring Cell / Q000453:epidemiology / Q000473:pathology; D002299:Cardia / Q000473:pathology; D005260:Female; D005748:Gastric Fundus / Q000473:pathology; D006779:Hospitals, Public / Q000706:statistics & numerical data; D006786:Hospitals, Urban / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008679:Metaplasia; D008875:Middle Aged; D010568:Peru / Q000453:epidemiology; D011706:Pyloric Antrum / Q000473:pathology; D013274:Stomach Neoplasms / Q000145:classification / Q000453:epidemiology / Q000473:pathology*