Thus, two groups were made: (1) FAP-positive cases, at the centre or at the infiltrating front of tumours, with sFAP levels equal or lower than 61.03 ng/mL; and (2) the rest of possible combinations (FAP+/sFAP > 61.03 ng/mL; FAP-/sFAP ≤ 61.03 ng/mL; and FAP-/sFAP > 61.03 ng/mL). This evidence concerns the gene FAP and neoplasm.