MALT1 and MALT lymphoma: In general, four chromosomal translocations are well known to be involved in the development of MALT lymphoma, which affect the api2, malt1 bcl10, foxp1 and IgH genes and have partly shown to cause an activation of the nuclear factor kappa B (NF-κB) pathway, suggesting a common occurance for MALT lymphomas (30).