High Neuron-specific enolase (NSE): what it means
A Neuron-specific enolase (NSE) result above the normal range is considered high. Here is what a raised Neuron-specific enolase (NSE) can point to, and when it is worth discussing with a doctor.
Reference range: typically <~16 ng/mL; a monitoring marker for small-cell lung cancer and some neuroendocrine tumours — used to follow known disease, not to screen
Understand your full resultWhat a high Neuron-specific enolase (NSE) can mean
- Small-cell lung cancer — the main use; higher levels reflect more active disease and are followed during treatment.
- Neuroendocrine tumours — including neuroblastoma in children.
- A rising trend in known disease — can signal the cancer becoming more active.
- Sample handling (haemolysis) — a broken-down blood sample can falsely raise NSE, since red cells contain the enzyme.
- Some benign or neurological conditions — occasional modest, non-cancer rises.
When to discuss with a doctor
NSE is a specialist monitoring marker, used mainly within the care of small-cell lung cancer and certain neuroendocrine tumours rather than as a screen or a stand-alone diagnostic test. In someone with one of these cancers, it is tracked over time: a falling trend is reassuring, while a rising trend prompts closer assessment with imaging. A raised NSE outside this setting is often non-specific — and a normal value never rules cancer out. Because a mishandled blood sample can falsely elevate it, results are interpreted with care. Mediora.AI can surface an NSE trend and show it alongside related markers, but this needs specialist assessment — the interpretation belongs with your oncology team.
Conditions this can relate to
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Upload your test - freeMediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.