Neuron-specific enolase, or neuron-specific enolase, is abnormal if the value is 24.5ng/mL. Neuron-specific enolase is an isoenzyme of enolase, which is generally found in neural tissues and neuroendocrine tissues, with a normal reference value of 5~15ng/mL, and some normal people’s indexes can reach 15.7~17.0ng/mL. However, this index requires dynamic observation, and a single abnormal result can not confirm that a disease has occurred. Neuron-specific enolase 24.5ng/mL is out of the normal range, and should be alerted to small cell lung cancer, neuroblastoma and other malignant diseases. In addition to this, elevated neuron-specific enolase can be seen in medullary thyroid carcinoma, pheochromocytoma, metastatic seminal cell carcinoma, melanoma, pancreatic endocrine tumors, infections, inflammation, and other diseases. If the neuron-specific enolase index is 24.5ng/mL, you should consult a doctor in time, and be guided by a professional doctor for further investigation and formulation of individualized diagnosis and treatment plan, so as to avoid delaying the condition.