期刊
BEST PRACTICE & RESEARCH CLINICAL GASTROENTEROLOGY
卷 21, 期 6, 页码 921-945出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.bpg.2007.10.001
关键词
oesophageal cancer; stomach cancer; epidemiology; Helicabacter pylori; Barrett's oesophagus; endoscopy
Oesophagogastric cancer occurs in the oesophagus, the oesophagogastric region and the stomach, including the proximal and distal stomach. In 2005, the worldwide burden of oesophagogastric cancer was estimated to be 1500000 new cases (500000 oesophagus and 1000000 stomach). Squamous cell cancer is linked with alcohol and tobacco consumption in Western countries. Its incidence is much higher in regions of Asia with a low-socio-economic status, nutritional deficiencies, poor oral status, carcinogens absorbed with smoked meat, fat-cooked foodstuffs, vegetables containing toxic alkaloids or mycotoxins, and water containing nitrites, nitrates and nitrosamines. Adenocarcinoma develops in the columnar lined oesophagus. Its incidence is still low but there is an increasing trend. The incidence of stomach cancer is decreasing worldwide, but is still high in Japan. Causal factors include Helicobacter pylori infection with atrophic gastritis and a diet poor in fruit and vegetables. Preneoplastic conditions of the oesophagogastric mucosa include erosive oesophagitis in alcoholics, columnar lined oesophagus as a complication of gastro-oesophageal reflux disease, and atrophic gastritis following H. pylori infection.
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