Alpha-fetoprotein (AFP)

Tumor markers are an important tool in the diagnosis and monitoring of tumor treatment. One such marker that is of great importance in the detection of tumors, especially liver cancer, is alpha-fetoprotein (AFP).

Alpha-fetoprotein is a glycoprotein that is synthesized primarily in the liver and placenta during pregnancy. However, elevated serum AFP levels may indicate the presence of tumors, especially hepatocellular carcinoma (HCC), which is the most common type of liver cancer.

Normal AFP levels are usually less than 10 ng/mL in adults. However, if AFP levels rise to values greater than 400 ng/mL, it may be a sign of the presence of a tumor in the body.

Diagnosis using AFP:

1. Detection of GCR: The main diagnostic use of AFP is in the detection of hepatocellular carcinoma. Patients with risk factors, such as cirrhosis or hepatitis B or C, are routinely tested for AFP levels in their blood. Elevated AFP levels may prompt doctors to order further tests, such as ultrasound or CT scans, to detect a tumor.
2. Assessment of treatment effectiveness: AFP levels can also be used as an indicator of the effectiveness of tumor treatment. After treatment, AFP levels may decrease in patients with HCC. Monitoring this marker allows doctors to track the results of therapy and adjust the treatment plan if necessary.
3. Different types of tumors: In addition to HCR, elevated AFP levels can be seen in other types of tumors, such as gonadoblastomas and biliary tract tumors. Therefore, elevated AFP can be used to distinguish between different tumor types.
4. Tumor recurrences: After removal of the tumor or other treatment, regular monitoring of AFP levels allows for timely detection of possible tumor recurrence.

It is important to consider, that elevated AFP levels are not diagnostic in themselves, as they can occur in other conditions, such as cirrhosis or liver inflammation. Therefore, additional testing is always necessary to confirm the diagnosis of a tumor.

In conclusion, alpha-fetoprotein is an important tumor marker that helps in the detection of liver cancer and other types of tumors. Information about the level of AFP in the blood serum contributes to the early detection of pathologies and monitoring the course of treatment. But it is important to remember that the diagnosis should be based on a comprehensive examination and consultation with a doctor.