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Gastric Cancer occurs when cancer cells form in the stomach lining. There are 5 layers in the stomach wall: mucosa, submucosal, muscularis propria, subserosa and serosa. The location of the tumor and the layers involved play an important role in determining the stage (extent) of cancer. This can affect a personu2019s treatment options and prognosis. As cancer grows from the mucosa into deeper layers, the stage becomes more advanced and demands extensive treatment. Most of gastric cancers (about 95u201390%) are adenocarcinomas. Gastric adenocarcinoma is of two pathological variants, intestinal and diff
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