CEP55 and cholangiocarcinoma: High CEP55 expression within liver tumors showed a significant association with high histological grade (OR = 3.06 for G1/G2 vs. G3/G4, p = 9.08e − 7), advanced stages (OR = 1.97 for I/II vs. III/IV, p = 0.005), histological type (OR = 18.13 for HCC vs. CCA, p = 8.43e − 5), high T classification (OR = 1.95 for T1/T2 vs. T3/T4, p = 0.005), and survival status (OR = 1.77 for alive vs. dead, p = 0.007).