Differential expression of E-cadherin, β-catenin, and S100A4 in intestinal type and nonintestinal type ampulla of Vater cancers.

Background/Aims Epithelial-mesenchymal transition (EMT)-related proteins may exhibit differential expression in intestinal type or pancreatobiliary type ampulla of Vater carcinomas (AVCs). We evaluated the expression of E-cadherin, β-catenin, and S100A4 in intestinal and nonintestinal type AVCs and analyzed their relationships with clinicopathological variables and survival.