SST and neoplasm: A significant increase in expression levels of sst1, sst2 and sst3 was observed in tumor tissues in comparison to adjacent non-tumor tissues (3.88 ± 2.23 vs. 0.02 ± 0.01; 0.62 ± 0.08 vs. 0.24 ± 0.08; and 0.09 ± 0.02 vs. 0.04 ± 0.02, respectively).