MALT1 and MALT lymphoma: The most well-known MALT lymphoma-specific translocation t(11; 18)(q21; q21), encoding a BIRC3-MALT1 gene fusion product, is frequent in lung (40%), intestine (35%) and gastric (20%) MALT lymphomas but very rare in salivary gland, ocular adnexal and thyroid MALT lymphomas (Bende et al, 2009).