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Clinical features and guidelines of treatment of mucosa-associated lymphoid tissue lymphoma of stomach
Authors:Schneider T  Molnár Zs  Várady E  Deák B  Rosta A
Institution:National Institute of Oncology, Budapest, H-1122, Hungary. jtimar@oncol.hu
Abstract:The mucosa-associated lymphoid tissue (MALT) lymphoma is a very indolent disease. Its most common site is the stomach. The lymphoma begins as a reactive lymphocyte accumulation mostly due to an infection of Helicobacter pylori (HP). Through repeated mutations this tissue is transformed into the characteristic MALT lymphoma. At the time of the diagnosis the lymphoma is usually localised, but in one third of the patients the disease has already been disseminated. There are not any commonly accepted guidelines of therapy concerning this primary gastric MALT lymphoma, but certain general tendencies have already been defined. In the early disease the aim of the treatment is curative with the preservation of the stomach as much as possible. In a considerable number of cases, when the surface of the stomach is affected by HP, one can achieve histological and molecular biologic remission after eliminating the bacteria. However, there is no such therapeutic consequence to be expected in case of a deeply invasive tumour. The optimal treatment of patients of this group as well as those whose disease is resistant to HP eradication treatment together with those who are HP negative is radiotherapy or surgery with chemotherapy. In this latter case quality of life becomes worse. In an advanced case cure is impossible and chemotherapy is the most effective to ease the patient's state.
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