Tumor markers were as follows: alpha fetoprotein (AFP) 0.46 ng/ml, human chorionic gonadotropin (hCG) < 1 mIU/ml, ferritin 152 ng/ml, neuron-specific enolase (NSE) 12.4 ng/ml, urinary vanillylmandelic acid (VMA) 7.82 mg/24 hours. This evidence concerns the gene ENO2 and neoplasm.