Trend in incidence of gastric adenocarcinoma by tumor location from 1969-2004: a study in one referral center in Iran.

Aim: In recent years several studies have shown increasing rate of upper gastric cancers regarding to decrease in distal gastric cancers. The aim of this study was to describe the trend of gastric cancers by location in Iran, which is one of the countries with high prevalence of gastric cancers.

Methods: All registered cases of gastrectomy in Tehran Cancer Institute from 1969 through 2004 were re-evaluated clinicopathologically.