Bile CA19-9 CA242 And CEA Levels In The Diagnosis Of Bile Duct Carcinoma And Pancreatic Cancer

Cholangiocarcinoma and pancreatic carcinoma are frequently occurring digestive tumors, the mobidity of both has been increased greatly in recent years. Techniques of early diagnosis for them need to be approached further, and convenient parameters for early diagnosis are insufficient. Tumor markers are defined as the antigens and biotic activators which are the abnormally expressed products, and those substances are produced by the related gene of the tumorous tissue and cell, not by normal tissue. Nowadays there has been extensive investigation on the level of tumor markers in the tumor patients' tissue, humor and excreta, but the serum tumor markers are easily influenced by lots of factors in the body. Frequently appearing false positive and false negative depreciates the clinic diagnostic value of serum tumor markers. Because of the special anatomic relationship between biliary ducts and ductus pancreaticus, the antigens and biotic activators secreted by the tumor tissue of cholangiocarcinoma and pancreatic carcinoma can ingress lumens through the endepidermis of bile vessel ductus pancreaticus. While those activators in bile are rarely influenced by various factors of the body, so the survey of those tumor marker levels in the bile may...