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[5,6] Indeed, MALT lymphoma usually arises in mucosal sites where lymphocytes are not normally present and where MALT is acquired in response either to autoimmune processes, such as Hashimoto thyroiditis or Sjögren syndrome, or to chronic infectious conditions. However, there is no clear consensus as to whether radiation is more or less effective than systemic therapy in MALT lymphomas at different locations, and the experience of each center and the patient’s preferences in terms of adverse effects are important parameters to include in the decision-making process.[78]. Lyon: IARC; 2008. p. 214-17. Zucca E, Bertoni F, Roggero E, Cavalli F. The gastric marginal zone B-cell lymphoma of MALT type. 21. de Boer JP, Hiddink RF, Raderer M, et al. Eur J Nucl Med Mol Imaging. Br J Haematol. Teckie S, Lovie S, Navarett S, Yahalom J. Retrospective series have included patients treated with different modalities, and excellent cause-specific and overall survival have been demonstrated, independent of the type of treatment adopted. Ocular adnexal MALT lymphoma: an intriguing model for antigen-driven lymphomagenesis and microbial-targeted therapy. Brogi E, Harris NL. Gastric MALT lymphoma B cells express polyreactive, somatically mutated immunoglobulins. [16-20], MALT lymphoma usually remains localized for a prolonged period within the tissue of origin, but spreading to multiple sites is not uncommon, and presentation with disseminated disease is reported in up to one-fourth of cases and seems more common in nongastric MALT cases. 28. 88. Zucca E, Conconi A, Laszlo D, et al. Stathis and Bertoni have no significant financial interest in or other relationship with the manufacturer of any product or provider of any service mentioned in this article. MALT lymphomas only seldom form prominent tumor masses and are often difficult to distinguish from the inflammatory lesion that underlies the acquisition of MALT from which the lymphoma arises. Treatment outcome of mucosa-associated lymphoid tissue/marginal zone non-Hodgkin’s lymphoma. Twenty-nine patients had C psittaci DNA in baseline swabs or blood samples and were evaluable for chlamydial eradication, which was achieved in 48%. Oncology (Williston Park). [62,63] Compared with chlorambucil alone, and with rituximab alone, the combination of chlorambucil plus rituximab resulted in increased complete remission and event-free survival rates, but the 5-year overall survival was nearly identical in all treatment arms. In: Zucca E. MALT lymphomas. Leuk Lymphoma. Hoffmann M, Wohrer S, Becherer A, et al. 75. Although H pylori eradication using antibiotic regimens combined with proton-pump inhibitors is nowadays the standard front-line therapy for patients with H pylori–associated gastric MALT lymphoma, the role of antibiotic therapy in patients with nongastric MALT lymphoma is much less well defined. 50. Primary extranodal mucosa associated lymphoid tissue (MALT) lymphoma of the prostate. Treatment results in localized primary gastric lymphoma: data of patients registered within the German multicenter study (GIT NHL 02/96). Financial Disclosure:Dr. Zucca receives research funding from Roche. 2008;22:261-7. 2013;31 (S1):130. 29. Radiother Oncol. 8. Ansell SM, Grant CS, Habermann TM. J Natl Cancer Inst. 11. Zucca E, Conconi A, Martinelli G, et al. In a study from Princess Margaret Hospital in Toronto evaluating the long-term outcome of 167 patients with localized (stage IE and IIE) MALT lymphoma treated with involved-field radiotherapy, gastric and thyroid lymphomas had a significantly better outcome, and distant failures were more common for other sites. They are more common in older adults but may occur in individuals in their twenties and thirties. Thieblemont C, Berger F, Dumontet C, et al. Baens M, Fevery S, Sagaert X, et al. J Clin Oncol. Leuk Lymphoma. Chlamydophila psittaci eradication with doxycycline as first-line targeted therapy for ocular adnexae lymphoma: final results of an international phase II trial. 30. Zhang WD, Guan YB, Li CX, et al. Weiler-Sagie M, Bushelev O, Epelbaum R, et al. Puri DR, Tereffe W, Yahalom J. Low-dose and limited-volume radiotherapy alone for primary dural marginal zone lymphoma: treatment approach and review of published data. Blood. A polychemotherapy regimen comprising chlorambucil/mitoxantrone/prednisone has been reported to be effective and well tolerated in MALT lymphoma, irrespective of localization. [1-3] Primary splenic and nodal MZLs are rare, each comprising approximately less than 2% of lymphomas, while the extranodal MZL of MALT type is not uncommon, representing approximately 7% to 8% of the total number of non-Hodgkin lymphoma cases.[4]. Nodal marginal zone B-cell lymphoma. 89. 18F-Fluoro-deoxy-glucose positron emission tomography in lymphoma of mucosa-associated lymphoid tissue: histology makes the difference. Only a small minority of patients present with elevated lactate dehydrogenase (LDH) or β2-microglobulin levels, and constitutional B symptoms are extremely rare. Bertoni F, Coiffier B, Salles G, et al. 1997;89:3909-18. Ocular adnexal mucosa-associated lymphoid tissue lymphoma treated with radiotherapy. Zucca E, Conconi A, Pedrinis E, et al. Isaacson PG, Du MQ. Lucas PC, McAllister-Lucas LM Nunez G. NF-kappaB signaling in lymphocytes: a new cast of characters. 7. 51. IPSID has a prolonged natural history, often over many years, including a potentially reversible early phase; the disease is usually confined to the abdomen. Comparison between endoscopic macroscopic classification and F-18 FDG PET findings in gastric mucosa-associated lymphoid tissue lymphoma patients. [77] How long a patient can be safely observed after doxycycline treatment before starting a different treatment remains to be clarified.
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