Our data demonstrate that the pathogenetic consequences of the novel MALT1-MAP4 fusion are different from those of the known MALT1-associated chromosomal rearrangements and do not involve NF-kappaB activation..     ///    "Immunohistochemistry with amino-terminal and carboxy-terminal MALT1 antibodies, indicated a strong expression of the chimeric MALT1-MAP4 protein. "