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NCI Dictionary of Cancer Terms


Helicobacter pylori  listen  (HEEL-ih-koh-BAK-ter py-LOR-ee)

  A type of bacterium that causes inflammation and ulcers in the stomach or small intestine. People with Helicobacter pylori infections may be more likely to develop cancer in the stomach, including MALT (mucosa-associated lymphoid tissue) lymphoma. Also called H. pylori.