📌 What is the AFP Tumor Marker Test?
A blood test that measures alpha-fetoprotein (AFP), a protein produced by the liver, yolk sac, and fetal tissues. AFP is used as a tumor marker to help detect and monitor liver cancer and germ cell tumors.
📊 Normal Ranges
✔ Adults: < 10 ng/mL (varies by lab)
✔ Pregnancy: Higher levels are normal
🚨 High AFP Levels May Indicate:
🔺 Liver cancer (Hepatocellular carcinoma - HCC)
🔺 Germ cell tumors (testicular or ovarian cancer)
🔺 Metastatic cancers affecting the liver
🔺 Cirrhosis or chronic hepatitis (mild elevation possible)
📉 Low or Normal AFP Levels May Suggest:
✔ No active liver or germ cell tumors
✔ Benign liver conditions (if liver disease is present but AFP is normal)
🎯 Purpose of the Test
✅ Detects liver cancer (HCC) in high-risk individuals
✅ Monitors treatment response in cancer patients
✅ Assists in diagnosing germ cell tumors (testicular & ovarian cancer)
✅ Screens high-risk individuals (chronic hepatitis B/C, cirrhosis)
💡 Key Facts
🔹 AFP is a key tumor marker for liver and germ cell cancers
🔹 Not always conclusive—imaging (CT, MRI) may be required for diagnosis
🔹 Pregnant women naturally have elevated AFP levels
🔹 Used for both cancer detection and monitoring recurrence