Management of gastric mucosa-associated lymphoid tissue lymphoma in patients with extra copies of the MALT1 gene.
World J Gastroenterol
; 23(33): 6155-6163, 2017 Sep 07.
Article
em En
| MEDLINE
| ID: mdl-28970731
ABSTRACT
AIM:
To identify the clinical features of gastric mucosa-associated lymphoid tissue (MALT) lymphoma with extra copies of MALT1.METHODS:
This is a multi-centered, retrospective study. We reviewed 146 patients with MALT lymphoma in the stomach who underwent fluorescence in situ hybridization analysis for t(11;18) translocation. Patients were subdivided into patients without t(11;18) translocation or extra copies of MALT1 (Group A, n = 88), patients with t(11;18) translocation (Group B, n = 27), and patients with extra copies of MALT1 (Group C, n = 31). The clinical background, treatment, and outcomes of each group were investigated.RESULTS:
Groups A and C showed slight female predominance, whereas Group B showed slight male predominance. Mean ages and clinical stages at lymphoma diagnosis were not different between groups. Complete response was obtained in 61 patients in Group A (69.3%), 22 in Group B (81.5%), and 21 in Group C (67.7%). Helicobacter pylori (H. pylori) eradication alone resulted in complete remission in 44 patients in Group A and 13 in Group C. In Group B, 14 patients underwent radiotherapy alone, which resulted in lymphoma disappearance. Although the difference was not statistically significant, event-free survival in Group C tended to be inferior to that in Group A (P = 0.10).CONCLUSION:
Patients with t(11;18) translocation should be treated differently from others. Patients with extra copies of MALT1 could be initially treated with H. pylori eradication, similar to patients without t(11;18) translocation or extra copies of MALT1.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
/
Tipos_de_cancer
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Estomago
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Gástricas
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Helicobacter pylori
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Infecções por Helicobacter
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Linfoma de Zona Marginal Tipo Células B
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Proteína de Translocação 1 do Linfoma de Tecido Linfoide Associado à Mucosa
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Antibacterianos
/
Antineoplásicos
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
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Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
World J Gastroenterol
Assunto da revista:
GASTROENTEROLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Japão