Monday, November 9, 2015

Types of Stomach Cancer - Be aware.


Types of stomach cancers

Different types of stomach cancer include:

Adenocarcinoma

About 90% to 95% of cancers of the stomach are adenocarcinomas. When the term stomach cancer or gastric cancer is used, it almost always refers to an adenocarcinoma. These cancers develop from the cells that form the innermost lining of the stomach (known as the mucosa).

Lymphoma

These are cancers of the immune system tissue that are sometimes found in the wall of the stomach. About 4% of stomach cancers are lymphomas. The treatment and outlook depend on the type of lymphoma. For more detailed information, see our document Non-Hodgkin Lymphoma.

Gastrointestinal stromal tumor (GIST)

These are rare tumors that start in very early forms of cells in the wall of the stomach called interstitial cells of Cajal. Some of these tumors are non-cancerous (benign); others are cancerous. Although GISTs can be found anywhere in the digestive tract, most are found in the stomach. For more information, see our document Gastrointestinal Stromal Tumor (GIST).

Carcinoid tumor

These are tumors that start in hormone-making cells of the stomach. Most of these tumors do not spread to other organs. About 3% of stomach cancers are carcinoid tumors. These tumors are discussed in more detail in our document Gastrointestinal Carcinoid Tumors.

Other cancers

Other types of cancer, such as squamous cell carcinoma, small cell carcinoma, and leiomyosarcoma, can also start in the stomach, but these cancers are very rare.
The information in the remainder of this document refers only to adenocarcinoma of the stomach.
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