S100A9 and intrahepatic cholangiocarcinoma: The ratio of MRP14 positive cells to biliary epithelial cells in ICC was higher than in IHBD (P < 0.001), BilIN1 (P < 0.0001), BilIN2 (P = 0.0084), BilIN3 (P = 0.0261), and IPNB (P < 0.0001) (Figure 2).