Lab marker · High

High Vanillylmandelic acid (VMA): what it means

A Vanillylmandelic acid (VMA) result above the normal range is considered high. Here is what a raised Vanillylmandelic acid (VMA) can point to, and when it is worth discussing with a doctor.

Reference range: measured in a 24-hour urine collection; a metabolite of adrenaline/noradrenaline used, like metanephrines, to look for a catecholamine-secreting tumour

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What a high Vanillylmandelic acid (VMA) can mean

  • Pheochromocytoma or paraganglioma — a catecholamine-secreting tumour; the classic reason for a high VMA.
  • Neuroblastoma — in children, a raised VMA (with HVA) supports the diagnosis and is followed during treatment.
  • A mildly raised level — can be a false positive from certain foods (vanilla, coffee, bananas, chocolate), medications or stress if pre-test restrictions were not followed.
  • Severe stress or acute illness — raises catecholamine output.

When to discuss with a doctor

Urinary VMA is a specialist test used to look for a catecholamine-secreting tumour — a pheochromocytoma in adults, or neuroblastoma in children — when there are suggestive symptoms (spells of high blood pressure, headache, sweating, palpitations), resistant hypertension, an adrenal mass, or, in a child, signs of neuroblastoma. It is often paired with or replaced by the more sensitive metanephrine tests. Because vanilla-containing foods, coffee, certain fruits and some medicines can distort the result, the accuracy depends on following the pre-collection restrictions, and a mildly raised value is often repeated. A clearly high level prompts confirmation and imaging. Mediora.AI can surface a raised VMA alongside metanephrines and your blood pressure so the pattern is visible; confirming a tumour and any treatment belong with your specialist.

Conditions this can relate to

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Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.