FAP and neoplasm: Despite these differences, FAP expression in the primary tumor center and border positively correlated with FAP expression in both lymph nodes (Spearman Rho r=0.166, p=0.028; and r=0.24, p=0.002; respectively) and distant liver metastases (r=0.279, p=0.007; and r=0.256; p=0.016 respectively).