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  • Title: Long-term treatment of localized gastric marginal zone B-cell mucosa associated lymphoid tissue lymphoma including incidence of metachronous gastric cancer.
    Author: Ono S, Kato M, Takagi K, Kodaira J, Kubota K, Matsuno Y, Komatsu Y, Asaka M.
    Journal: J Gastroenterol Hepatol; 2010 Apr; 25(4):804-9. PubMed ID: 20492338.
    Abstract:
    BACKGROUND AND AIM: According to a few recent reports on the long-term clinical outcome of gastric marginal zone B-cell mucosa associated lymphoid tissue lymphoma (MALT lymphoma); localized gastric MALT lymphoma generally has a favorable prognosis. However, the risk of metachronous gastric cancer has not been evaluated. In this study, we analyzed long-term outcomes of localized gastric MALT lymphoma including the incidence of metachronous gastric cancer. METHODS: Between April 1996 and May 2008, 60 patients (31 men and 29 women; mean age 58.1 years) with localized gastric MALT lymphoma (stage I and II(1) according to Lugano classification) were analyzed retrospectively. RESULTS: Forty-eight patients (82.6%) achieved complete remission by eradication therapy. Radiation therapy was conducted on eight patients as second-line treatment, and all of them achieved remission. The median follow-up period was 76 months (range, 12-157 months). One patient had local relapse after remission for 5 years and three patients developed early gastric cancer without recurrence of lymphoma (5%). All of the three gastric cancers appeared in the same areas where MALT lymphoma had been eradicated. CONCLUSION: Eradication therapy and radiation therapy for localized gastric MALT lymphoma have a favorable long-term outcome, though regular follow-up endoscopy should be performed for detecting metachronous early gastric cancer.
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