Stomach cancer, also known as gastric cancer,
is a disease in which abnormal cells grow and multiply in the lining of the stomach. The
stomach is located in the upper central part of the abdomen, just below the ribs, and plays
an essential role in breaking down and digesting food.
Gastric cancer can develop in any part of the stomach. In many parts of the world, stomach
cancer most commonly occurs in the main portion of the stomach, known as the stomach body.
In the United States, however, gastric cancer is more likely to begin at the
gastroesophageal junction, where the esophagus—the tube that carries swallowed food—connects
to the stomach.
Early detection and appropriate treatment are important for improving outcomes in patients
with stomach cancer.