Our findings suggest that the presence of the API2-MALT1 fusion transcript resulting from t(11;18)(q21;q21) does not adversely affect the response of gastric MALT lymphoma to chemotherapy with 2CdA.     ///     t(11;18)(q21;q21) resulting in the API2-MALT1 fusion transcript is an exclusive finding in extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). 