MUC2 and gallbladder carcinoma: Figure 1 shows the expression of the MUC4 (A), MUC1 (B), and MUC2 (C) in normal gallbladder tissue, while Figure 2 shows the expression of MUC4 (A), MUC1 (B), and MUC2 (C) in a patient with gallbladder carcinoma.