Figure 3From: Complete absence of M2-pyruvate kinase expression in benign pancreatic ductal epithelium and pancreaticobiliary and duodenal neoplasia Lack of expression of M2-pyruvate kinase in premalignant pancreaticobiliary epithelium: Premalignant lesions showing lack of M2-PK expression pancreatic intraepithelial neoplasia I (× 20) (top panel); pancreatic intraepithelial neoplasia III (× 20) (middle panel); common bile duct with low-grade dysplasia (× 20) (bottom panel).Back to article page