In which of the following tumors alpha fetoprotein (AFP) is elevated?: (A) Choriocarcinoma, (B) Neuroblastoma, (C) Hepatocellular carcinoma, (D) Seminoma
Answer is C. Serum elevations of alkaline phosphatase and alpha fetoprotein are common. An abnormal type of prothrombin, des-gamma-carboxy prothrombin, is made and correlates with AFP elevations.