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Title: Pulmonary marginal zone B-cell lymphoma of MALT type--what is a prognostic factor and which is the optimal treatment, operation, or chemotherapy?: Consortium for Improving Survival of Lymphoma (CISL) study. Author: Oh SY, Kim WS, Kim JS, Kim SJ, Kwon HC, Lee DH, Won JH, Hwang IG, Kim MK, Lee SI, Chae YS, Yang DH, Lee GW, Choi CW, Park J, Suh C, Kim HJ. Journal: Ann Hematol; 2010 Jun; 89(6):563-8. PubMed ID: 20024551. Abstract: Pulmonary marginal zone B-cell lymphoma of the MALT type (P-MZL) is a relatively rare form of lymphoma. We conducted a retrospective analysis of the clinical features and treatment outcomes of P-MZL for the evaluation of prognostic factors, and to collect information about the optimal treatment modality for this condition. From 1991 to 2008, a total of 61 patients with biopsy-confirmed P-MZL were retrospectively analyzed. The median age of our subjects was 60 (range, 34-79) years. Twenty-five of the patients (41%) were initially diagnosed without any symptoms. Video-assisted thoracic surgery was utilized for diagnosis in 19 patients (31%). Thirty-eight patients' conditions (62%) involved a single lobe. Lung lesions were bilateral in 15 patients (25%). Eleven patients evidenced synchronous involvement of extra-pulmonary site MZL. Overall, 56 of 61 patients were treated with surgery (n = 22), chemotherapy (n = 28), or radiotherapy (n = 6). Among them, 46 patients achieved complete or partial remission. The median time to progression (TTP) was 5.6 (95% CI, 2.6-8.6) years. Five patients died during follow-up. Extra-pulmonary MZL and LN involvement were shown to be poor prognostic factors for TTP. We noted no differences between the operation group and chemotherapy group in terms of TTP. P-MZL tends to be an indolent disease-characterized by prolonged survival with frequent relapses. This is similar to what is observed with other cases of MALT-type site MZL. In order to conserve lung function and reduce the risks of operation, chemotherapy should be considered as a first-line option for the treatment of P-MZL.[Abstract] [Full Text] [Related] [New Search]