Helicobacter pylori (Hp)-induced gastric carcinogenesis and mucosa associated lymphoid tissue (MALT) lymphoma is a multistep and multifactorial process, which commonly starts with chronic gastritis and dyspepsia, Hp might act as a trigger by an alteration of cellular synet-ics probably without genetic demodulations. The bacteria, usually determine the ultimate risk for the development of gastric cancer and/or MALT lyrnphoma, Hp is, therefore, considered the cause of 75% of gastric cancer. The neoplastic growth would better be prevented by eradication of the Hp infection, not only in the initial phases but also in those with pre-neoplastic changes (in case of MALT lymphoma, a low grade reversible type of malignancy).
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