title: [Analysis of prognostic correlated factors of 49 patients with mucosa-associated lymphoid tissue lymphoma].
abstract: The aim of this study was to investigate the clinical feature of mucosa-associated lymphoid tissue lymphoma and clarify the relationship between the pathological, clinical features, the expression of API2-MALT1 and the prognosis. A number of factors including pathological characters, grade, stage, prognosis and treatment of 49 cases of MALT lymphoma were analyzed, and the API2-MALT1 rearrangement was detected by RT-PCR. The results showed that 49 patients were diagnosed as MALT lymphoma, in which median age was 52.4 years. The percentage of patients older than 50 years was 67.3%. The majority of tumors were found in stomach (22 cases), intestine (13 cases), thyroid (6 cases) and so on. Among 49 patients, stage I, II was 77. 6%, stage III, IV was 22.4%. API2-MALT1 rearrangement were found 38.1% in low grade, and 12.5% in transform type. Among 18 patients with gastric MALT lymphoma, 9 cases (50.0%) were helicobacter pylori (HP) positive and received antibiotic treatment. The 3 years overall survival was 93.8%. It is concluded that MALT lymphoma is often seen in older patients, most of them were in low grade with slow progression. The site, grade, stage and molecular genetic changes are important prognostic factors, which can contribute to choosing suitable treatment for patients with MALT lymphoma. The antibiotic treatment is effective for patients with positive HP.
authors: Department of Hematology, The Third Hospital, Peking University, Beijing 100083, China.
authors: Hong-Mei
authors: HM
authors: Jing
authors: Xiao-Yan
authors: XY
authors: Ke
authors: Fei
authors: F
authors: Dong
mesh_terms: D000328:Adult; D000368:Aged; D020169:Caspases / Q000235:genetics* / Q000378:metabolism; D005260:Female; D015321:Gene Rearrangement; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000175:diagnosis* / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D000074884:Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein; D009363:Neoplasm Proteins / Q000235:genetics* / Q000378:metabolism; D009367:Neoplasm Staging; D015514:Oncogene Proteins, Fusion / Q000235:genetics*; D011379:Prognosis; D055815:Young Adult
chemical_list: C415943:API2-MALT1 fusion protein, human; D009363:Neoplasm Proteins; D015514:Oncogene Proteins, Fusion; D020169:Caspases; C400109:MALT1 protein, human; D000074884:Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein