For example, immunohistochemical MUC6 positivity ranges from 7% to 85% in esophageal adenocarcinoma,16, 17 from 4% to 93% in cholangiocellular carcinoma,18, 19 from 24% to 64% in pancreatic ductal adenocarcinoma,11, 20 from 20% to 100% in cervical adenocarcinoma,21, 22 and from 0% to 92% in lobular breast carcinoma.23, 24. This evidence concerns the gene MUC6 and pancreatic ductal adenocarcinoma.