PIGR and cancer: Significant differences were observed in protein concentration levels between cancer and inflammatory lesions for S100P, PIGR, C1QBP, TAGLN, and CNN1 (P ═ 0.0006, P ═ 0.0032, P ═ 0.0008, P < 0.0001, P ═ 0.0094, respectively) as shown in (Figure 5).