Cytokeratin 19 (A53-B/A2.26)

Anti-cytokeratin 19 reacts with epithelia and epithelial malignancies including carcinomas of the colon, stomach, pancreas, biliary tract, liver, and breast.1 Anti-cytokeratin 19 is very useful in differentiation of hepatocellular carcinoma from intrahepatic cholangiocarcinoma, especially in a combination of cytokeratin 7, CAM5.2l, Ber-EP4/MOC31, HepPar1 and TTF1.1 Another useful application is the identification of thyroid papillary carcinoma.2-3