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What is gastric MALT lymphoma?

April 26, 2017Gastric lymphoma malt

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What is gastric MALT lymphoma?

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Cancer affecting the mucosa-associated lymphoid tissue (MALT) in the stomach, or gastric MALT lymphoma, is a rare type of non-Hodgkin lymphoma characterized by B lymphocytes, a type of immune cell, that slowly multiply in the stomach lining. The lining of the stomach normally lacks lymphoid (immune system) tissue, but this tissue nearly always appears in response to colonization of the lining by H. pylori bacteria (2). MALT lymphomas account for approximately four percent of all cases of lymphoma. • Is there evidence that shows that H. pylori infection increases the risk of gastric cancer? Many studies have demonstrated a link between H. pylori infection and gastric cancers (3–7). In 1994, the International Agency for Research on Cancer (IARC) classified H. pylori as a carcinogen, or cancer-causing agent, despite conflicting results at the time. Since then, colonization of the stomach with H. pylori has been increasingly accepted as an important risk factor for gastric cancers. However