In line with this notion, we show here that C/EBPδ levels in two other tumors that are located within the pancreas, i.e., ampullary carcinoma and intrapancreatic cholangiocarcinoma, do not differ significantly from control levels in normal intestinal epithelial cells and cholangiocytes, respectively. This evidence concerns the gene CEBPD and carcinoma of the ampulla of vater.