Understand Your Test

Vanillylmandelic Acid (VMA)

Formal Name

 Vanillylmandelic Acid, urine

Why Get Tested?

To help diagnose or rule out a neuroblastoma or other neuroendocrine tumor; to monitor the effectiveness of treatment.

When To Get Tested?

When your child has a lump in the abdomen (abdominal mass), bruising around the eyes, trouble walking, or bone pain; when you have symptoms of increased catecholamine release, such as persistent or periodic high blood pressure, severe headaches, rapid heart rate, and sweating; when you have been treated for a neuroendocrine tumor, such as neuroblastoma.