[Prognostic value of t(11; 18) (q21; q21) for gastric mucosa-associated lymphoid tissue lymphoma]

To investigate the prognostic value of t(11; 18) (q21; q21) in gastric mucosa-associated lymphoid tissue lymphoma.A cohort of thirty-six gastric mucosa-associated lymphoid tissue lymphoma patients who were pathologically identify diagnosis from January 1994 to June 2004 were followed up retrospectively and studied using fluorescence in situ hybridization(FISH) technique to detect t(11; 18) (q21; q21) chromosomal translocation on preservative paraffin specimen.Among thirty-six patients, fifteen (41.67%) were positive for t (11; 18) (q21; q21). All but one were followed up to March 2010, general median survival time (MST) was 87 months. The MST were 43 and 130 months for t(11; 18) positive and negative patients, respectively. The MST between these two groups was notably different (chi-square=29.57, P0.01).t(11; 18) (q21; q21) is important prognostic factor for gastric mucosa-associated lymphoid tissue lymphoma.