Serum tumor markers showed slight elevation of alpha-fetoprotein (AFP) at 15 μg/L (normal < 9 μg/L), normal β-human chorionic gonadotropin (β-hCG) < 5 U/L (normal < 5 U/L), and lactate dehydrogenase (LDH) 116 U/L (normal 100–225 U/L). This evidence concerns the gene AFP and neoplasm.