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Stomach cancer (also called gastric cancer) is an abnormal and unregulated growth of the cells that make up the stomach. The stomach is a pouch that holds and stores food after eating, and helps in the process of digestion.
When you chew and swallow food, it travels from your mouth down a muscular tube called the esophagus. The esophagus delivers food to your stomach. The stomach is made up of a variety of cells, including some that produce substances that aid in digestion, such as acid and enzymes. Food from the stomach enters the duodenum, the first part of the small intestine, where digestion continues.
Under certain conditions, stomach cells undergo changes that result in uncontrolled growth, and these cance