Increased expressions of ACAA1 (acetyl-CoA acyltransferase 1, Figure 7A), FABP1 (fatty acid-binding protein 1, Figure 7D), PPARA (Figure 7F), and FABP2 (Figure 7G) genes were seen in ampullary adenocarcinomas compared to pancreatic adenocarcinomas. This evidence concerns the gene FABP2 and pancreatic adenocarcinoma.