Stomach Cancer Introduction
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The stomach is a muscular bag with a capacity of about 1 liter or quart. It lies along the digestive tract between the esophagus and the small intestine. The stomach serves as a reservoir for food eaten during meals and begins the process of digestion. Its inner walls are composed of glands that secrete acid and digestive enzymes.
The most common form of cancer that affects the stomach is adenocarcinoma, which arises in the glands of the innermost layer of the stomach. This tumor tends to spread through the wall of the stomach and from there into the adjoining organs (pancreas and spleen) and lymph nodes. It can spread through the bloodstream and lymph system to distant organs (metastasize).
Robert J Fingerote, MD, MSc, BSc
Scott H Plantz, MD, FAAEM
Francisco Talavera, PharmD, PhD
Jerry Balentine, DO
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