CCND1 and diffuse large B-cell lymphoma: This chromosomal abnormality is detected in 25% to 48% of cases of MALT lymphoma with involvement of the stomach.[17] In addition to these findings, reported karyotype alterations include t(1;14)(p22;q32),t(14;18)(q32;q21),t(3;14)(q27;q32), and t(3;14)(p14.1;q32).[12,13] However, Bcl-1,bcl-2,bcl-3,and bcl-6 rearrangements were not found to be associated with MALT lymphoma.[18] Furthermore, MALT lymphoma has been observed to transform into diffuse large B-cell lymphoma.[19]