Routine blood examination showed anemia (86 g/L), normal white blood cell counts, high erythrocyte sedimentation rate (120 mm/h), high C-reactive protein (17 ng/L), normal ferritin (247 ng/mL), high neuron-specific enolase (NSE, 70.01 ng/mL), and normal 24 h urine vanillylmandelic acid (7.7 mg/24 h). This evidence concerns the gene ENO2 and anemia.