S100B and MALT lymphoma: ↑ S100 A8/A9 in serum, SG, saliva, feces [87,88,89,90,92,93,94].S100A8/A9 correlate with SG FS and MALT lymphoma [89,95]↑ S100B in CSF [97,98,99]↑ TLR-4 and RAGE in SGEC [102,103]