Bile duct cancer ca199 is usually high

Clinically, some patients with cholangiocarcinoma show elevated levels of Ca199, which are typically three to five times or higher than normal. However, some patients with cholangiocarcinoma show elevated levels of Ca 199, which are within the normal range. Because Ca199 is not a specific tumor marker, it can be detected in the serum of patients with many tumors, such as pancreatic cancer, gastrointestinal cancer, lung cancer, etc. This increase can only be used to assist in the diagnosis of these malignancies, and to monitor the disease changes of these malignancies, and sometimes can also be used to evaluate the effect of anti-tumor therapy, but Ca199 is not used as a diagnostic indicator for cholangiocarcinoma. If cholangiocarcinoma needs to be diagnosed, it can only rely on histopathological results.