vanillylmandelic acid

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(VMA) (van-i-lil-man-del-ik)

a metabolite of catecholamines excreted in abnormal amounts in the urine in conditions of excess catecholamine production, such as phaeochromocytoma. Measurement of VMA levels can be used as a screening test for phaeochromocytoma.

Subjects: Medicine and Health.

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