Definition of Gastric cancer

Gastric cancer: A malignant tumor of the stomach. Gastric cancer can develop in any part of the stomach and can spread from the stomach to other organs. Symptoms of stomach cancer are often vague, such as loss of appetite and weight. Gastric cancer is diagnosed via a biopsy of stomach tissue during an endoscopy. Also called stomach cancer.


Last Editorial Review: 3/30/2012

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