LCN2 and cholangiocarcinoma: The LCN2 concentration in the CC patients was significantly higher in women with stage IV compared to stage I (40,036 (25th–75th percentile, 32,810–49,751) and 1044 (25th–75th percentile, 1042–) pg/mL, respectively; P = 0.021), but did not reach a statistical significance between the other CC stages.